When a threatened plant needs urgent measures to save it from extinction, the desirable approach is
1. in-situ conservation
2. ex-situ conservation
3. cryopreservation
4. biopreservation
The search for previously unknown compounds in organisms that have never been used in traditional medicine is known as:
1. Biopiracy
2. Bioprospecting
3. Molecular pharming
4 Bioremediation
The most important cause of the loss of biodiversity today is the :
1. Habitat loss and fragmentation
2. Over exploitation
3. Alien species invasion
4. Co-extinctions
Loss of biodiversity may lead to all except:
1. decline in plant production
2. increased resistance to environmental perturbance
3. increased variability in water use
4. increased variability in pest and disease cycle
Which of the following is not a reason that accounts for greater biodiversity of tropics?
1. availability of more solar energy
2. more niche specialization
3. more time for species diversification
4. large seasonal variations in environmental factors
Although, India has only 2.4 % of world's area, its share of global species diversity is about
1. | 3 % | 2. | 5 % |
3. | 8 % | 4. | 11 % |
The greatest biodiversity on the earth is found in
1. African grasslands
2. Amazonian rain forest in South America
3. Western Ghats in India
4. Nile delta in Egypt
Select the odd one with respect to strategies of biodiversity conservation
1. Biosphere reserves.
2. Sacred groves.
3. National parks.
4. Zoological parks.
Which one is not a key criterion for determining a hotspot?
1. Very high levels of species richness.
2. High degree of those species which are confined to that region and not found anywhere else.
3. Degree of threat, which is measured in terms of habitat loss.
4. No habitat loss.
Tropical environments, unlike temperate ones, are less seasonal, relatively more constant and predictable. Such constant environment promote
1. Deforestation 2. Mass extinctions
3. Over-exploitation 4. Niche specialization
In general, loss of biodiversity in a region may lead to
1. Increase in plant production
2. Decreased variability in certain ecosystem processes such as plant productivity
3. Increase in species richness
4. Lowered resistance to environmental perturbations such as drought
Exploring molecular, genetic and species - level diversity for products of economic importance is known as
1. Endemism
2. Bioinformatics
3. Tissue culture
4. Bioprospecting
It has been recommended that storage of nuclear waste, after sufficient pre-treatment, should be done in suitably shielded containers buried within rocks about _____ deep below the earth’s surface.
1. 100 m
2. 50 m
3. 500 m
4. 200 m
The concept of Joint Forest Management was introduced by the Government of India in
1. 1974
2. 1980
3. 1987
4. 1990
Which is not an example of in situ conservation:-
1. National park, wild life sanctuaries
2. Biosphere reserve
3. Sacred groves
4. Botanical gardens
Which of the following group represents exotic species?
1. Glycyrhiza and Parthenium.
2. Eichhornia crassipes and Nile perch.
3. Thylacine and Dodo.
4. Podophyllum and Blue Vanda.
Match the animals given in column A with their location in column B:
Column A Column B
i. Dodo a. Africa
ii. Quagga b. Russia
iii. Thylacine c. Mauritius
iv. Stellar’s sea cow d. Austratia
Choose the correct match from the following
1. i-a, ii-c, iii-b, iv-d
2. i-d, ii-c, iii-a, iv-b
3. i-c, ii-a, iii-b, iv-d
4. i-c, ii-a, iii-d, iv-b
Which of the following groups is most threatened by global extinctions?
1. mammals
2. birds
3. fish
4. amphibians
Find incorrect match
1. The earth summit – 1992
2. World summit on sustainable development – 2002
3. Hot spots – 2% of the earth’s land area.
4. Sacred groves – Ex situ conservation
Match the following
Group Percent facing threat of extinction
A. Birds 1. 12%
B. Mammals 2. 23%
C. Amphbians 3. 32%
D. Gymnosperm 4. 31%
Options
A B C D
1. 4 3 2 1
2. 1 2 3 4
3. 1 3 2 4
4. 1 4 3 2
Most important cause for biodiversity loss is
1. Over exploitation.
2. Allien species invasion.
3. Co-extinctions.
4. Habitat loss and fragmentation.
The international treaty to control ozone depletion is
1. Kyoto protocol.
2. Montreal protocol.
3. Bali convention.
4. Earth summit.
“Hotspots of biodiversity”, are/show
1. High degree of endemism.
2. Slow rate of extinction.
3. Less species richness.
4. Only five in India.
GEAC is an Indian Government organization that deals with issues related to:
1. Ozone depletion
2. GM research
3. Loss of biodiversity
4. Use of microbes in dairy products
The correct order of the relative contribution of various greenhouse gases to total global warming is:
1. Carbon dioxide > Methane > Nitrous oxide > CFCs
2. Methane > Carbon dioxide > Nitrous oxide > CFCs
3. Methane > Carbon dioxide > CFCs > Nitrous oxide
4. Carbon dioxide > Methane > CFCs > Nitrous oxide