11.
American water plant that has become a troublesome water weed in India is
A
Cyperus rotundus
B
Eichhornia crassipes
C
Trapa latifolia
D
Trapa bispinosa
Answer :
Eichhornia crassipes
Discuss Question
No explanation is given for this question. Let's discuss the answer together.
12.
If the forest cover is reduced to half, what is most likely to happen on a long term basis ?
A
Tribals living in these areas will starve to death
B
Cattle in these and adjoining areas will die due to lack of fodder
C
Large areas will become deserts
D
Crop breeding programmes will suffer due to a reduced availability of variety of germplasm
Answer :
Large areas will become deserts
Discuss Question
No explanation is given for this question. Let's discuss the answer together.
13.
Which of the following is the most important cause of animals and plants being driven to extinction?
A
Over - exploitation
B
Alien species invasion
C
Habitat loss and fragmentation
D
Co-extinctions
Answer :
Habitat loss and fragmentation
Discuss Question
No explanation is given for this question. Let's discuss the answer together.
14.
Which animal has gone extinct in recent times in India?
A
Panthera leo
B
Acinonyx jubatus
C
Antilope cervicapra
D
Rhinoceros unicornis
Answer :
Panthera leo
Discuss Question
No explanation is given for this question. Let's discuss the answer together.
15.
Which one of the following shows maximum genetic diversity in India?
A
Groundnut
B
Rice
C
Maize
D
Mango
Answer :
Rice
Discuss Question
No explanation is given for this question. Let's discuss the answer together.
16.
Which one of the following has maximum genetic diversity in India?
A
Mango
B
Wheat
C
Tea
D
Teak
Answer :
Wheat
Discuss Question
No explanation is given for this question. Let's discuss the answer together.
17.
Renewable source of energy is
A
Biomass
B
Coal
C
Petroleum
D
Kerosene
Answer :
Biomass
Discuss Question
No explanation is given for this question. Let's discuss the answer together.
18.
Bulk fixation of carbon through photosynthesis takes place in
A
tropical rain forests
B
tropical rain forest and crop plants
C
crop plants
D
oceans
Answer :
oceans
Discuss Question
No explanation is given for this question. Let's discuss the answer together.
19.
Minerals and metals are
A
biodegradable resources
B
renewable
C
non-renewable
D
renewable and non-renewable resources
Answer :
renewable and non-renewable resources
Discuss Question
No explanation is given for this question. Let's discuss the answer together.
20.
All of the following are included in 'ex-situ conservation' except
A
Wildlife safari parks
B
Sacred groves
C
Seed banks
D
Botanical gardens
Answer :
Sacred groves
Discuss Question
No explanation is given for this question. Let's discuss the answer together.