Prelims 2021 • Paper 1 (GS) • Q.74

With reference to 'Direct Air Capture', an emerging technology, which of the following statements is/ are correct? I. It can be used as a way of carbon sequestration. II. It can be a valuable approach for plastic production and in food processing. III. In aviation, it can be a source of carbon for combining with hydrogen to create synthetic low-carbon fuel. Select the correct answer using the code given below.

Which one of the following launched the 'Nature Solutions Finance Hub for Asia and the Pacific'?

Consider the following : 1. Carbon monoxide 2. Nitrogen oxide 3. Ozone 4. Sulphur dioxide Excess of which of the above in the environment is/are cause(s) of acid rain ?

Consider the following statements: 1. Other than those made by humans, nanoparticles do not exist in nature. 2. Nanoparticles of some metallic oxides are used in the manufacture of some cosmetics. 3. Nanoparticles of some commercial products which enter the environment are unsafe for humans. Which of the statements given above is/are correct?

'Triclosan', considered harmful when exposed to high levels for a long time, is most likely present in which of the following?