1
UPSC Civil Service Prelims Paper I 2021 (General Studies)
MCQ (Single Correct Answer)
+2
-0.66
Change Language

Why is there a concern about copper smelting plants?

1. They may release lethal quantities of carbon monoxide into environment. 

2. The copper slag can cause the leaching of some heavy metals into the environment.

3. They may release sulphur dioxide as a pollutant.

Select the correct answer using the code given below.

A
1 and 2 only
B
2 and 3 only
C
1 and 3 olnly
D
1, 2 and 3
2
UPSC Civil Service Prelims Paper I 2021 (General Studies)
MCQ (Single Correct Answer)
+2
-0.66
Change Language
'R2 Code of Practices’ constitutes a tool available for promoting the adoption of
A
environmentally responsible practices recycling industry 
B
ecological management of ‘Wetlands of International Importance’ under the Ramsar Convention
C
sustainable practices in the cultivation of agriculture crops in degraded lands
D
'Environmental Impact Assessment' in- the exploitation of natural resources
3
UPSC Civil Service Prelims Paper I 2021 (General Studies)
MCQ (Single Correct Answer)
+2
-0.66
Change Language

Which of the following have species that can establish symbiotic relationship with other organisms?

1. Cnidarians

2. Fungi

3. Protozoa

Select the correct answer using the code given below.

A
1 and 2 only
B
2 and 3 only
C
1 and 3 only
D
1, 2 and 3
4
UPSC Civil Service Prelims Paper I 2021 (General Studies)
MCQ (Single Correct Answer)
+2
-0.66
Change Language
The ‘Common Carbon Metric’, supported by UNEP, has been developed for
A
assessing the carbon footprint of building operations around the world
B
enabling commercial farming entities around the world to enter carbon emission trading
C
enabling governments to assess the overall carbon footprint caused by their countries
D
assessing the overall carbon footprint caused by the use of fossil fuels by the world in a unit time
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