DAILY TEST 3 ENGLISH

1. The formation of micelles takes place above:

(a) Critical micelle concentration (CMC)
(b) Critical micelle temperature (CMT)
(c) Critical micelle pressure (CMP)
(d) Critical micelle volume (CMV)
Correct Answer: (a) Critical micelle concentration (CMC)
Explanation: Micelles form when surfactant molecules in a solution reach a certain concentration, known as the Critical Micelle Concentration (CMC), above which they aggregate into micelles.

2. Where does the ozone hole primarily form?

(a) Arctic stratosphere
(b) Antarctic stratosphere
(c) Tropical stratosphere
(d) Equatorial stratosphere
Correct Answer: (b) Antarctic stratosphere
Explanation: The ozone hole is most prominent over the Antarctic stratosphere, particularly during the Southern Hemisphere spring (September to November), due to cold temperatures and the presence of polar stratospheric clouds that catalyze ozone depletion.

3. The power of the human eye lens is approximately 10⁴ W. What is its pH value?

(a) 14
(b) 12
(c) 10
(d) 4
Correct Answer: None of the options
Explanation: The question seems to be incorrectly framed. The power of a lens is measured in diopters (D), not watts (W), and the human eye lens typically has a power of around 40 D. Additionally, pH is a measure of acidity/alkalinity, not applicable to lens power. The question might be referring to a different context, but as stated, none of the options fit.

4. Which of the following is not a feature of a parliamentary system?

(a) Separation of powers
(b) Collective responsibility
(c) Nominal executive
(d) Political homogeneity
Correct Answer: (a) Separation of powers
Explanation: A parliamentary system does not feature a strict separation of powers (as in a presidential system); instead, the executive and legislature are intertwined. Collective responsibility, a nominal executive (e.g., a monarch or president), and political homogeneity are characteristics of a parliamentary system.

5. Consider the following statements regarding transformers:

(a) Flux increases + Scalar + Transformable
(b) Flux decreases + Scalar + Transformable
(c) Flux increases + Scalar + Non-transformable
(d) Flux decreases + Scalar + Non-transformable
Correct Answer: None of the options
Explanation: The statements are unclear and do not align with standard transformer principles. Transformers work on the principle of electromagnetic induction, where flux changes (not increases or decreases statically) induce voltage. The terms "scalar" and "transformable" are ambiguous in this context, and none of the options accurately describe transformer behavior.

6. Which of the following is not a type of transformer?

(a) Autotransformer
(b) Step-up transformer
(c) Step-down transformer
(d) Galvanometer
Correct Answer: (d) Galvanometer
Explanation: Autotransformers, step-up, and step-down transformers are types of transformers used to change voltage levels. A galvanometer is an instrument to measure electric current, not a transformer.

7. Which of the following is not a type of galvanometer?

(a) Moving coil
(b) Moving magnet
(c) Ammeter
(d) Voltmeter
Correct Answer: (c) Ammeter
Explanation: Moving coil and moving magnet are types of galvanometers based on their construction. Ammeter and voltmeter are instruments that use galvanometers as their core but are not types of galvanometers themselves.

8. Which of the following is a type of transformer?

(a) Autotransformer
(b) Galvanometer
(c) Voltmeter
(d) Ammeter
Correct Answer: (a) Autotransformer
Explanation: An autotransformer is a type of transformer with a single winding that acts as both primary and secondary. Galvanometer, voltmeter, and ammeter are measurement devices, not transformers.

9. The threshold frequency for a metal is 10¹⁴ Hz. What is the minimum energy required to eject an electron from the metal surface?

(a) 20 eV, photons with higher frequency
(b) 40 eV, photons with higher frequency
(c) 20 eV, photons with lower frequency
(d) 40 eV, photons with lower frequency
Correct Answer: None of the options
Explanation: The minimum energy required to eject an electron is the work function, given by E = hν₀, where ν₀ is the threshold frequency (10¹⁴ Hz) and h is Planck’s constant (4.14 × 10⁻¹⁵ eV·s). E = (4.14 × 10⁻¹⁵) × (10¹⁴) = 0.414 eV. None of the options (20 eV or 40 eV) match this value. Additionally, the frequency must be higher than the threshold to eject electrons, but the energy values provided do not fit.

10. When does the photoelectric effect occur?

(a) When the frequency of incident light is below the threshold frequency
(b) When the frequency of incident light is above the threshold frequency
(c) When the frequency of incident light equals the threshold frequency
(d) When the frequency of incident light is zero
Correct Answer: (b) When the frequency of incident light is above the threshold frequency
Explanation: The photoelectric effect occurs when the frequency of incident light exceeds the threshold frequency of the metal, providing enough energy to eject electrons.

11. Consider the following statements regarding the Kyoto Protocol:

1. It was adopted in 1997 in Kyoto, Japan.
1. It aims to reduce greenhouse gas emissions.
Which of the statements is/are correct?
(a) Only 1
(b) Only 2
(c) Both 1 and 2
(d) Neither 1 nor 2
Correct Answer: (c) Both 1 and 2
Explanation: The Kyoto Protocol was adopted in 1997 in Kyoto, Japan (1), and its primary goal is to reduce greenhouse gas emissions to combat climate change (2).

12. Which of the following is not a feature of the Kyoto Protocol?

(a) Emission reduction
(b) Carbon trading
(c) Ozone depletion
(d) Clean Development Mechanism
Correct Answer: (c) Ozone depletion
Explanation: The Kyoto Protocol focuses on reducing greenhouse gas emissions through mechanisms like emission reduction, carbon trading, and the Clean Development Mechanism. Ozone depletion is addressed by the Montreal Protocol, not the Kyoto Protocol.

13. Which of the following is a goal of the Kyoto Protocol?

(a) Reduce greenhouse gas emissions
(b) Reduce ozone depletion
(c) Increase carbon emissions
(d) Increase fossil fuel usage
Correct Answer: (a) Reduce greenhouse gas emissions
Explanation: The Kyoto Protocol aims to reduce greenhouse gas emissions to mitigate climate change, as established in 1997.

14. Consider the following statements regarding the Kyoto Protocol:

1. It was adopted in 1997 in Kyoto, Japan.
1. It aims to reduce greenhouse gas emissions by 5%.
Which of the statements is/are correct?
(a) Only 1
(b) Only 2
(c) Both 1 and 2
(d) Neither 1 nor 2
Correct Answer: (a) Only 1
Explanation: The Kyoto Protocol was adopted in 1997 in Kyoto, Japan (1). However, the target reduction of greenhouse gas emissions varied by country, averaging about 5.2% below 1990 levels for developed countries, but the specific 5% figure (2) is not universally applicable.

15. Match the following:

A. Kyoto Protocol
B. Montreal Protocol
C. Paris Agreement
D. Copenhagen Accord
1. 1997
1. 1987
1. 2015
1. 2009
(a) A-1, B-2, C-3, D-4
(b) A-2, B-3, C-4, D-1
(c) A-3, B-4, C-1, D-2
(d) A-4, B-1, C-2, D-3
Correct Answer: (a) A-1, B-2, C-3, D-4
Explanation: Kyoto Protocol (A) was in 1997 (1), Montreal Protocol (B) in 1987 (2), Paris Agreement (C) in 2015 (3), and Copenhagen Accord (D) in 2009 (4).

16. Which of the following is a goal of the Montreal Protocol?

(a) Reduce greenhouse gas emissions
(b) Reduce ozone-depleting substances
(c) Increase carbon emissions
(d) Increase fossil fuel usage
Correct Answer: (b) Reduce ozone-depleting substances
Explanation: The Montreal Protocol (1987) aims to reduce ozone-depleting substances like CFCs to protect the ozone layer.

17. Which of the following is a goal of the Paris Agreement?

(a) Reduce greenhouse gas emissions
(b) Reduce ozone-depleting substances
(c) Increase carbon emissions
(d) Increase fossil fuel usage
Correct Answer: (a) Reduce greenhouse gas emissions
Explanation: The Paris Agreement (2015) aims to limit global warming by reducing greenhouse gas emissions, targeting a temperature rise below 2°C above pre-industrial levels.

18. Consider the following statements regarding the Paris Agreement:

1. It was adopted in 2015 in Paris, France.
1. It aims to limit global warming to below 2°C.
Which of the statements is/are correct?
(a) Only 1
(b) Only 2
(c) Both 1 and 2
(d) Neither 1 nor 2
Correct Answer: (c) Both 1 and 2
Explanation: The Paris Agreement was adopted in 2015 in Paris, France (1), and its goal is to limit global warming to well below 2°C, preferably to 1.5°C, compared to pre-industrial levels (2).

19. Which of the following is not a feature of the Paris Agreement?

(a) Nationally Determined Contributions (NDCs)
(b) Global Stocktake
(c) Ozone depletion
(d) Climate finance
Correct Answer: (c) Ozone depletion
Explanation: The Paris Agreement focuses on climate change mitigation through NDCs, Global Stocktake, and climate finance. Ozone depletion is addressed by the Montreal Protocol, not the Paris Agreement.

20. Consider the following statements regarding the Copenhagen Accord:

1. It was adopted in 2009 in Copenhagen, Denmark.
1. It aims to limit global warming to below 2°C.
Which of the statements is/are correct?
(a) Only 1
(b) Only 2
(c) Both 1 and 2
(d) Neither 1 nor 2
Correct Answer: (c) Both 1 and 2
Explanation: The Copenhagen Accord was adopted in 2009 in Copenhagen, Denmark (1), and it set a goal to limit global warming to below 2°C (2), though it was not legally binding.

21. Match the following:

A. Kyoto Protocol
B. Montreal Protocol
C. Paris Agreement
D. Copenhagen Accord
1. 1997
1. 1987
1. 2015
1. 2009
(a) A-1, B-2, C-3, D-4
(b) A-2, B-3, C-4, D-1
(c) A-3, B-4, C-1, D-2
(d) A-4, B-1, C-2, D-3
Correct Answer: (a) A-1, B-2, C-3, D-4
Explanation: This is a repeat of question 15. Kyoto Protocol (A) was in 1997 (1), Montreal Protocol (B) in 1987 (2), Paris Agreement (C) in 2015 (3), and Copenhagen Accord (D) in 2009 (4).

22. Consider the following statements regarding the "Montreal Protocol":

1. It aims to reduce ozone-depleting substances.
1. It was adopted in 1987 in Montreal, Canada.
Which of the statements is/are correct?
(a) Only 1
(b) Only 2
(c) Both 1 and 2
(d) Neither 1 nor 2
Correct Answer: (c) Both 1 and 2
Explanation: The Montreal Protocol aims to reduce ozone-depleting substances (1) and was adopted in 1987 in Montreal, Canada (2).

23. Which of the following is a feature of the Montreal Protocol?

(a) Reduce greenhouse gas emissions
(b) Reduce ozone-depleting substances
(c) Increase carbon emissions
(d) Increase fossil fuel usage
Correct Answer: (b) Reduce ozone-depleting substances
Explanation: This is a repeat of question 16. The Montreal Protocol’s primary goal is to reduce ozone-depleting substances.

24. Match the following:

A. Kyoto Protocol
B. Montreal Protocol
C. Paris Agreement
D. Copenhagen Accord
1. 1997
1. 1987
1. 2015
1. 2009
(a) A-1, B-2, C-3, D-4
(b) A-2, B-3, C-4, D-1
(c) A-3, B-4, C-1, D-2
(d) A-4, B-1, C-2, D-3
Correct Answer: (a) A-1, B-2, C-3, D-4
Explanation: This is a repeat of questions 15 and 21. Kyoto Protocol (A) was in 1997 (1), Montreal Protocol (B) in 1987 (2), Paris Agreement (C) in 2015 (3), and Copenhagen Accord (D) in 2009 (4).

25. Consider the following statements regarding the Montreal Protocol:

(a) Statements 1 and 2
(b) Statements 2 and 3
(c) Statements 1 and 3
(d) Statements 1, 2, and 3
Correct Answer: (a) Statements 1 and 2
Explanation: This likely refers to the statements in question 22 (1: reduce ozone-depleting substances, 2: adopted in 1987 in Montreal). Both are correct, while a hypothetical third statement is not specified but assumed incorrect.

26. In which year did the partition of Bengal take place, marking the beginning of the Swadeshi Movement?

(a) 1907

(b) 1905

(d) 1908

Correct Answer: (b) 1905

Explanation: The partition of Bengal was announced in 1905 by Lord Curzon, leading to the Swadeshi Movement as a protest against the division, which was seen as a British strategy to weaken Indian unity.

27. What is the primary source of energy for Earth's climate system?

(a) Solar radiation

(b) Geothermal energy

(d) Nuclear energy

Correct Answer: (a) Solar radiation

Explanation: Solar radiation is the primary source of energy for Earth's climate system, driving weather patterns, ocean currents, and the overall climate through the heating of the Earth's surface.

28. Consider the following statements regarding the Swadeshi Movement:

The Swadeshi Movement was a response to the partition of Bengal.

It encouraged the use of indigenous goods and boycott of British goods.

It was led by leaders like Bal Gangadhar Tilak and Lala Lajpat Rai.

It had no impact on the British economy.

Which of the statements is/are correct?

(a) 1, 2, and 3

(b) 1 and 2

(d) 2, 3, and 4

Correct Answer: (a) 1, 2, and 3

Explanation: The Swadeshi Movement was indeed a response to the 1905 partition of Bengal (1), promoted the use of Indian goods and boycotted British products (2), and was led by leaders like Bal Gangadhar Tilak and Lala Lajpat Rai (3). However, it did impact the British economy by reducing imports, so statement 4 is incorrect.

29. Consider the following statements regarding the Swadeshi Movement:

(a) Statements 1, 2, 3, and 4

(b) Statements 1, 2, and 3

(d) Statements 2, 3, and 4

Correct Answer: (b) Statements 1, 2, and 3

Explanation: This question likely refers to the same statements as above. As established, statements 1, 2, and 3 about the Swadeshi Movement are correct, while 4 is incorrect due to the movement's economic impact on Britain.

30. What is the source of energy for the Earth's climate system?

(a) Solar

(b) Geothermal

(d) Nuclear

Correct Answer: (a) Solar

Explanation: This is a repeat of question 27. Solar energy, through solar radiation, is the primary driver of Earth's climate system.

31. Consider the following statements regarding the development of education in India:

The Charter Act of 1813 provided funds for education in India.

The Macaulay Minute of 1835 emphasized English education.

The Wood's Despatch of 1854 is known as the Magna Carta of Indian education.

Which of the statements is/are correct?

(a) 1 and 2

(b) 2 and 3

(d) 1, 2, and 3

Correct Answer: (d) 1, 2, and 3

Explanation: The Charter Act of 1813 allocated funds for education (1), the Macaulay Minute of 1835 promoted English education (2), and Wood's Despatch of 1854 laid the foundation for modern education in India, often called the Magna Carta of Indian education (3). All statements are correct.

32. Match the following:

A. Macaulay Minute

B. Wood's Despatch

C. Charter Act

D. Hunter Commission

1813

1835

1854

1882

(a) A-1, B-2, C-3, D-4

(b) A-2, B-3, C-1, D-4

(d) A-4, B-1, C-2, D-3

Correct Answer: (b) A-2, B-3, C-1, D-4

Explanation: Macaulay Minute (A) was in 1835 (2), Wood's Despatch (B) in 1854 (3), Charter Act (C) in 1813 (1), and Hunter Commission (D) in 1882 (4).

33. Which of the following is a greenhouse gas?

(a) Nitrogen

(b) Oxygen

(d) Hydrogen

Correct Answer: (c) Carbon dioxide

Explanation: Carbon dioxide (CO₂) is a well-known greenhouse gas, contributing to global warming by trapping heat in the atmosphere. Nitrogen, oxygen, and hydrogen do not have this property.

34. Which of the following statements regarding greenhouse gases is correct?

(a) They trap heat in the Earth's atmosphere.

(b) They are produced only by natural processes.

(d) They are not present in the atmosphere.

Correct Answer: (a) They trap heat in the Earth's atmosphere.

Explanation: Greenhouse gases like CO₂ trap heat in the Earth's atmosphere, leading to the greenhouse effect. The other statements are incorrect: they are produced by both natural and human activities, they affect temperature, and they are present in the atmosphere.

35. Consider the following statements regarding greenhouse gases:

Carbon dioxide is a greenhouse gas.

Methane is a greenhouse gas.

Nitrogen is a greenhouse gas.

Which of the statements is/are correct?

(a) 1 and 2

(b) 2 and 3

(d) 1, 2, and 3

Correct Answer: (a) 1 and 2

Explanation: Carbon dioxide (1) and methane (2) are greenhouse gases, contributing to global warming. Nitrogen (3) is not a greenhouse gas; it constitutes most of the atmosphere but does not trap heat.

36. Which of the following is not a greenhouse gas?

(a) Carbon dioxide

(b) Methane

(d) Nitrogen

Correct Answer: (d) Nitrogen

Explanation: Carbon dioxide, methane, and nitrous oxide are greenhouse gases. Nitrogen, while abundant in the atmosphere, does not contribute to the greenhouse effect.

37. Consider the following statements regarding the impact of greenhouse gases:

They contribute to global warming.

They cause acid rain.

They deplete the ozone layer.

Which of the statements is/are correct?

(a) 1 and 2

(b) 2 and 3

(d) 1 only

Correct Answer: (d) 1 only

Explanation: Greenhouse gases contribute to global warming (1) by trapping heat. They are not directly responsible for acid rain (2), which is caused by sulfur dioxide and nitrogen oxides, nor do they deplete the ozone layer (3), which is caused by CFCs.

38. Match the following:

A. Carbon dioxide

B. Methane

C. Nitrous oxide

D. Chlorofluorocarbons (CFCs)

Ozone depletion

Agriculture

Fossil fuels

Landfills

(a) A-3, B-4, C-2, D-1

(b) A-4, B-3, C-2, D-1

(d) A-1, B-2, C-3, D-4

Correct Answer: (a) A-3, B-4, C-2, D-1

Explanation: Carbon dioxide (A) is primarily from fossil fuels (3), methane (B) from landfills (4), nitrous oxide (C) from agriculture (2), and CFCs (D) cause ozone depletion (1).

39. Which of the following is a source of methane emissions?

(a) Fossil fuels

(b) Landfills

(d) Both b and c

Correct Answer: (d) Both b and c

Explanation: Methane is emitted from landfills (through decomposition) and agriculture (e.g., livestock digestion), making both b and c correct.

40. Consider the following statements regarding methane emissions:

Methane is produced by landfills.

Methane is produced by agricultural activities.

Methane is not a greenhouse gas.

Which of the statements is/are correct?

(a) 1 and 2

(b) 2 and 3

(d) 1, 2, and 3

Correct Answer: (a) 1 and 2

Explanation: Methane is produced by landfills (1) and agriculture (2), and it is a potent greenhouse gas, so statement 3 is incorrect.

41. Which of the following is a source of nitrous oxide emissions?

(a) Fossil fuels

(b) Agriculture

(d) Both a and b

Correct Answer: (b) Agriculture

Explanation: Nitrous oxide (N₂O) is primarily emitted from agricultural activities, such as the use of nitrogen fertilizers, not from fossil fuels or landfills.

42. Which of the following is a source of chlorofluorocarbons (CFCs)?

(a) Refrigerators

(b) Aerosols

(d) All of the above

Correct Answer: (d) All of the above

Explanation: CFCs were commonly used in refrigerators, aerosols (e.g., spray cans), and air conditioners, contributing to ozone depletion until their use was phased out.

43. Which of the following is a consequence of ozone depletion?

(a) Increased UV radiation

(b) Global warming

(d) Both a and b

Correct Answer: (a) Increased UV radiation

Explanation: Ozone depletion allows more ultraviolet (UV) radiation to reach the Earth's surface, increasing risks like skin cancer. It is not directly linked to global warming or acid rain.

44. Which of the following is a measure to control ozone depletion?

(a) Reducing CFC emissions

(b) Reducing CO₂ emissions

(d) Reducing nitrous oxide emissions

Correct Answer: (a) Reducing CFC emissions

Explanation: The primary cause of ozone depletion is CFCs, so reducing their emissions (e.g., through the Montreal Protocol) is the most effective measure.

45. Which of the following international agreements addresses ozone depletion?

(a) Kyoto Protocol

(b) Paris Agreement

(d) Copenhagen Accord

Correct Answer: (c) Montreal Protocol

Explanation: The Montreal Protocol (1987) is an international agreement to phase out ozone-depleting substances like CFCs.

46. Which of the following is a source of acid rain?

(a) Sulfur dioxide

(b) Nitrogen oxides

(d) Both a and b

Correct Answer: (d) Both a and b

Explanation: Acid rain is caused by sulfur dioxide (SO₂) and nitrogen oxides (NOₓ), which react with water vapor to form acids. Carbon dioxide does not contribute to acid rain significantly.

47. Which of the following is a consequence of acid rain?

(a) Soil degradation

(b) Damage to aquatic ecosystems

(d) All of the above

Correct Answer: (d) All of the above

Explanation: Acid rain leads to soil degradation, harms aquatic ecosystems by lowering pH, and damages buildings (e.g., limestone corrosion).

48. Which of the following is a measure to control acid rain?

(a) Reducing sulfur dioxide emissions

(b) Reducing nitrogen oxide emissions

(d) Both a and b

Correct Answer: (d) Both a and b

Explanation: Reducing sulfur dioxide and nitrogen oxide emissions (e.g., through cleaner industrial processes) directly addresses the causes of acid rain.

49. Which of the following is an international agreement to address climate change?

(a) Kyoto Protocol

(b) Montreal Protocol

(d) Both a and c

Correct Answer: (d) Both a and c

Explanation: The Kyoto Protocol (1997) and Copenhagen Accord (2009) both address climate change by setting emission reduction targets. The Montreal Protocol focuses on ozone depletion.

50. On which date is World Environment Day celebrated?

(a) 20 April 2025

(b) 18 April 2025

(d) 5 June 2025

Correct Answer: (d) 5 June 2025

Explanation: World Environment Day is celebrated annually on 5 June, established by the United Nations to raise awareness about environmental issues.

DAILY TEST 3 ENGLISH

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