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

How is permaculture farming different from conventional chemical farming?

1. Permaculture farming discourages monocultural practices but in conventional chemical farming, monoculture practices are predominant.

2. Conventional chemical farming can cause an increase in soil salinity but the occurrence of such phenomenon is not observed in permaculture farming.

3. Conventional chemical farming is easily possible in semi-arid regions but permaculture farming is not so easily possible in such regions.

4. Practice of mulching is very important in permaculture farming but not necessarily so conventional chemical farming

Select the correct answer using the code given below.  

A
1 and 3
B
1, 2 and 4
C
4 only
D
2 and 3
2
UPSC Civil Service Prelims Paper I 2021 (General Studies)
MCQ (Single Correct Answer)
+2
-0.66
Change Language

With reference to ‘palm oil’, consider the following statements:

1. The palm oil tree is native to Southeast Asia.

2. Palm oil is a raw material for some industries producing lipstick and perfumes.

3. Palm oil can be used to produce biodiesel.

Which of the statements given above are correct? 

A
1 and 2 only
B
2 and 3 only
C
1 and 3 only
D
1, 2 and 3
3
UPSC Civil Service Prelims Paper I 2021 (General Studies)
MCQ (Single Correct Answer)
+2
-0.66
Change Language
“Leaf litter decomposes faster than in any other biome and as a result the soil surface is often almost bare. Apart from trees, the vegetation is largely composed of plant forms that reach up into the canopy vicariously, by climbing the trees or growing as epiphytes, rooted on the upper branches of trees.” This is the most likely description of
A
coniferous forest
B
dry deciduous forest
C
mangrove forest
D
tropical rain forest
4
UPSC Civil Service Prelims Paper I 2021 (General Studies)
MCQ (Single Correct Answer)
+2
-0.66
Change Language
What is blue carbon?
A
Carbon captured by oceans and coastal ecosystems
B
Carbon sequestered in forest biomass and agricultural soils
C
Carbon contained in petroleum and natural gas
D
Carbon present in atmosphere
UPSC Civil Service Subjects
Comprehension
Data Interpretation and Sufficiency
EXAM MAP
Medical
NEET
Graduate Aptitude Test in Engineering
GATE CSEGATE ECEGATE EEGATE MEGATE CEGATE PIGATE IN
Civil Services
UPSC Civil Service
Defence
NDA
CBSE
Class 12