Q. 1. The formation of ozone hole in the Antarctic region
has been a cause of concern. What could be the reason for the formation of this
hole?
a) Presence of Prominent Tropospheric Turbulence; and inflow
of Chlorofluorocarbons.
b)Presence of Prominent Polar front & Stratospheric
clouds & inflow of Chlorofluorocarbons.
c) Absence of Polar front & Stratospheric clouds and
inflow of Methane and Chlorofluorocarbons.
d) Increased temperature at polar region due to global
warming.
Q. 2 Regarding “Carbon credits”, which one of the following
statements is not correct?
a) The carbon credit system was ratified in conjunction with
the Kyoto protocol.
b) The carbon credits are awarded to countries or groups
that have reduced greenhouse gases below their emission
quota.
c) The goal of the carbon credit system is to limit the
increase of CO2 emission.
d) Carbon credits are traded at a price fixed from time to
time by the UNEP.
Q. 3 Three of the following criteria have contributed to the
recognition of Western Ghats – Sri Lanka and Indo-Burma regions as hotspots of
biodiversity:
1. Species richness
2. Vegetation density
3. Endemisn
4. Ethno botanical importance
5. Threat Perception
6. Adaptation of flora & fauna to warm & humid
conditions.
Which three of the above are correct criterion in this
context?
a)
1,2 & 6
b)
2, 4 & 6
c)
1, 3 & 5
d)
3, 4 & 6
Q. 4 In the context of ecosystem productivity, marine up welling
zones are important as they increase the marine productivity by bringing the
1. Decomposer micro organisms to the
surface.
2. Nutrients to the surface
3. Bottom – dwelling organisms to the
surface
Which of the statements above is/are
correct?
a)
1 and 2
b)
2 only
c)
2 and 3
d)
3 only
Q. 5 The Himalayan Range is very rich in species diversity
which one among the following is the most appropriate reason for this
phenomenon?
a) It has a
high rainfall that supports luxuriant vegetative growth.
b) It is a confluence of different
biogeographical zones.
c) Exotic
& invasive species have not been introduced in this region.
d) It has
less human interference.
Q. 6 With reference to India, consider the following Central
Acts.
1.
Import and Export (control) Act, 1947
2.
Mining & mineral development (regulation)
act, 1957
3.
Customs Act, 1962
4.
Indian Forest Act, 1927
Which of the above
Acts have relevance to bearing on the biodiversity conservation in the country?
a)
1 and 3 only
b)
2, 3 and 4 only
c)
1, 2, 3 and 4
d)
None of the above Acts
Q. 7 There is a concern over the increase in harmful algal
blooms in the sea waters of India. What
could be the causative factors for this phenomenon?
1. Discharge of nutrients from the estuaries .
2. Run-off from the land during the monsoon.
3. Up welling in the seas
Select the correct answer from the codes given below:
a)
1 only
b)
1 and 2 only
c)
2 and 3 only
d)
1, 2 and 3
Q. 8 A sandy & saline area is the natural habitat of an
Indian animal species. The animal has no predators in that area but its
existence is threatened due to the destruction of its habitat. Which one of the
following would be that animal?
a) Indian wild buffalo
b) Indian wild ass
c) Indian wild boar
d) Indian Gazelle
Q. 9 Biodiversity forms the basis for human existence in the
following ways.
1. Soil formation
2. Prevention of soil erosion
3. Recycling of waste
4 Pollination of crops
Select the correct answer using the codes given below
a)
1, 2 & 3 only
b)
2, 3 & 4 only
c)
1 & 4 only
d)
1, 2, 3 & 4
Q. 10 The 2004 Tsunami made people realize that mangroves
can serve as a reliable safety hedge against coastal calamities. How do
Mangroves function as a safety hedge?
a) The Mangrove swamps separate the human settlements from
the sea by a wide zone in which people
neither live not venture out.
b) The mangroves provide both food & medicines which
people are in need of after any natural disaster
c) The Mangrove tress are tall with dense canopies and
serves as an excellent shelter during a cyclone or Tsunami
d) The mangrove tress do not get uprooted by storms &
tides because of their extensive roots.
Q. 11 The Red data books published by the International
Union for conservation of nature & Natural resources (IUCN) contain lists
of
1. Endemic plant and animal species present in the
biodiversity hot spots.
2. Threatened plant and animal species
3. Protected sites for conservation of nature and natural
resources in various countries.
Select the correct answer using the codes given below.
a)
1 and 3
b)
2 only
c)
2 and 3
d)
3 only
Q. 12 Consider the following statements:
1. Biodiversity is normally greater in the lower latitudes
as compared to the higher latitudes.
2. Along the mountain gradients, biodiversity is normally
greater in the lower altitudes as compared to the higher altitudes
Which of the statements given above is/are correct?
a)
1 only
b)
2 only
c)
Both 1 and 2
d)
Neither 1 nor 2