Current Affairs MCQ for UPSC Exams - 20 March 2021

Current Affairs MCQ for UPSC Exams - 20 March 2021

Q.1) Consider the following statements regarding artificial photosynthesis process: 

1. Scientists have designed an integrated catalytic system comprising of a photosensitizer that can harness solar power and a catalytic centre that can eventually reduce CO2.
2. It is based on nature's own process of reducing carbon dioxide in the atmosphere, namely photosynthesis.
3. Technology is similar to Artificial leaf, that uses only sunlight which could eventually be used to develop a sustainable liquid fuel.

Which of the statements given above is/are correct?

(a) 1 and 3 only

(b) 2 and 3 only

(c) 1 and 2 only

(d) 2 only

Q.2) With reference to the Catch the Rain campaign, consider the following statements: 

1.It was launched by Ministry of Jal Shakti.
2.To facilitate these activities, states have been requested to open Rain Centers in each district.

Which of the statements given above is/are correct?

(a) Neither 1 nor 2

(b) Both 1 and 2 

(c) 1 only

(d) 2 only

Q.3) With reference to the Lake Baikal, consider the following statements 

1. It is the oldest and deepest lake in the world.
2. It contains 20% of the world’s total unfrozen freshwater reserve.
3. It is a UNESCO World Heritage Site.
Which of the statements given above is/are correct?

(a) 1 and 3 only

(b) 2 and 3 only

(c) 1, 2 and 3 only

(d) 2 only

Q.4) With reference to the Aluminium-air batteries, consider the following statements:

1.Aluminium-air batteries utilise CO2 in the air.
2. It is lower cost and more energy-dense alternative to lithium-ion batteries.
Which of the statements given above is/are correct?

(a) Neither 1 nor 2

(b) Both 1 and 2 

(c) 1 only

(d) 2 only

Q.5) With reference to the Constitution (Scheduled Castes) Order (Amendment) Bill, 2021, consider the following statements:

1. It seeks to put seven castes under one nomenclature of “Devendrakula Vellalars”.
2.The change in nomenclature was a long pending demand of the community and did not involve either the deletion or addition of any community in its ambit.
Which of the statements given above is/are correct?

(a) Neither 1 nor 2

(b) Both 1 and 2 

(c) 1 only

(d) 2 only

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