CSS :: MISCELLANEOUS - MCQs
1.
A bacterium found in the root nodules of leguminous plants is the:
A.
Clostridium
B.
Azotobacter
C.
Nitrobacter
D.
Rhizobium
Answer: Option D
Explanation:
2.
Conservator of Forsts looks after proper management of a:
A.
Forest circle
B.
Working circle
C.
Forest compartment
D.
Felling series
Answer: Option A
Explanation:
3.
The bacteria, which reduce nitrates in the soil to gaseous nitrogen, are known as denitrifying bacteria such as:
A.
Nitromonas
B.
Pseudomonas
C.
Nostoc
D.
Rhizobium
Answer: Option B
Explanation:
4.
Removal of top soil by soil erosion result in the loss of soil:
A.
Nitrites
B.
Nitrates
C.
Nitrogen
D.
Nitric and nitrous acids
Answer: Option B
Explanation:
5.
The transfer of food energy from the sources in plants through a series of organisms with repeated stages of eating and being eaten is known as:
A.
Food way
B.
Food web
C.
Food link
D.
Food chain
Answer: Option D
Explanation:
6.
Short and simple food chains are rare in the world and may be found in simple ecosystems like:
A.
Savanna
B.
Tundra
C.
Grassland
D.
Desert
Answer: Option B
Explanation:
7.
An animal which captures and readily kills live animals for its food is known as:
A.
Predator
B.
Parasite
C.
Symbionts
D.
None of these
Answer: Option A
Explanation:
8.
Desertification is:
A.
Spread of the desert
B.
Control of the desert
C.
Use of the desert for good of mankind
D.
None of these
Answer: Option A
Explanation:
9.
An association between two organisms belonging to different species, which live together for mutual benefit or on partner gets benefit and other, is neither benefited nor harmed is known as:
A.
Predation
B.
Parasitism
C.
Symbiosis
D.
None of these
Answer: Option C
Explanation:
10.
Symbiotic association in which both the partners get benefit and neither cansurvive without the other is called:
A.
Mutualism
B.
Commensalism
C.
Parasitism
D.
None of these
Answer: Option A
Explanation:
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