1
UPSC Civil Service Prelims Paper I 2023 (General Studies)
MCQ (Single Correct Answer)
+2
-0.66
Change Language
'Wolbachia method' is sometimes talked about with reference to which one of the following?
A
Controlling the viral diseases spread by mosquitoes
B
Converting crop residues into packing material
C
Producing biodegradable plastics
D
Producing biochar from thermo- chemical conversion of biomass
2
UPSC Civil Service Prelims Paper I 2023 (General Studies)
MCQ (Single Correct Answer)
+2
-0.66
Change Language

Consider the following activities:

1. Spreading finely ground basalt rock on farmlands extensively

2. Increasing the alkalinity of oceans by adding lime

3. Capturing carbon dioxide released by various industries and pumping it into abandoned subterranean mines in the form of carbonated waters

How many of the above activities are often considered and discussed for carbon capture and sequestration?

A
Only one
B
Only two
C
All three
D
None
3
UPSC Civil Service Prelims Paper I 2023 (General Studies)
MCQ (Single Correct Answer)
+2
-0.66
Change Language

Consider the following heavy industries:

1. Fertilizer plants

2. Oil refineries

3. Steel plants

Green hydrogen is expected to play a significant role in decarbonizing how many of the above industries?

A
Only one
B
Only two
C
All three
D
None
4
UPSC Civil Service Prelims Paper I 2022 (General Studies)
MCQ (Single Correct Answer)
+2
-0.66
Change Language
Among the following crops, which one is the most important anthropogenic source of both methane and nitrous oxide ?
A
Cotton
B
Rice
C
Sugarcane
D
Wheat
UPSC Civil Service Subjects
Comprehension
Data Interpretation and Sufficiency
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