Ecology and its relevance to man, natural resources, their sustainable management and conservation.
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Question No. 1
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The term 'Biomagnification' refers to the process where:
A.
The nutrient enrichment of a water body, causing excessive plant growth
B.
The introduction of non-native species into an ecosystem
C.
An increase in the concentration of a pollutant at successive trophic levels
D.
The natural aging process of a lake over geological time
Question No. 2
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Which of the following is an example of an ex-situ conservation method?
A.
National Park
B.
Seed Bank
C.
Biosphere Reserve
D.
Sacred Grove
Question No. 3
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The 'Chipko Movement' in India was a public movement primarily aimed at:
A.
Conserving wetlands
B.
Protecting tigers
C.
Preventing the cutting of trees
D.
Cleaning the Ganges river
Question No. 4
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What is the primary cause of eutrophication in water bodies?
A.
An increase in the concentration of heavy metals
B.
The introduction of invasive aquatic species
C.
Depletion of dissolved oxygen
D.
Excessive nutrient runoff from agricultural fields
Question No. 5
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A species whose functional role in an ecosystem is disproportionately larger than its population size suggests is known as a:
A.
Indicator species
B.
Keystone species
C.
Endemic species
D.
Pioneer species
Question No. 6
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The 'three Rs' of waste management, often promoted for sustainable living, stand for:
A.
Reduce, Reuse, Recycle
B.
Renew, Rebuild, Restore
C.
Resist, React, Report
D.
Resource, Refine, Regulate
Question No. 7
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Which international agreement is specifically focused on the conservation and sustainable use of wetlands?
A.
Kyoto Protocol
B.
Montreal Protocol
C.
CITES
D.
Ramsar Convention
Question No. 8
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From an ecological perspective, the most long-term solution to the problem of solid waste is:
A.
Incineration
B.
Source reduction
C.
Sanitary landfills
D.
Ocean dumping
Question No. 9
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The concept of 'biodiversity hotspots' was introduced by Norman Myers to identify regions which:
A.
Have the highest number of extinct species
B.
Are major centers for illegal wildlife trade
C.
Exhibit high species richness and are under severe threat
D.
Are exclusively located in tropical rainforests
Question No. 10
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Which of the following is considered a non-renewable natural resource?
A.
Solar energy
B.
Wind energy
C.
Forests
D.
Natural Gas
Question No. 11
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The gradual and predictable change in the species composition of a given area is known as:
A.
Ecological succession
B.
Biomagnification
C.
Niche specialization
D.
Population dynamics
Question No. 12
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The 'Tragedy of the Commons' describes a situation where:
A.
Individually rational users act contrary to the common good by depleting a shared resource
B.
A natural disaster destroys a community's resources
C.
A keystone species is removed from an ecosystem, causing its collapse
D.
Laws are passed to protect a resource, but they are ineffective
Question No. 13
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Which of the following is a primary function of a forest ecosystem that benefits humans?
A.
Release of carbon dioxide
B.
Increasing soil erosion
C.
Regulation of water cycles and climate
D.
Serving as a source of non-renewable minerals
Question No. 14
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Project Tiger, a major conservation initiative in India, was launched in:
A.
1992
B.
1973
C.
1980
D.
2001
Question No. 15
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The carrying capacity of an environment is defined as:
A.
The maximum rate of population growth
B.
The total number of all organisms in an ecosystem
C.
The maximum population size of a species that the environment can sustain indefinitely
D.
The minimum number of individuals required to start a new population
Question No. 16
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Which gas is most responsible for the phenomenon of global warming?
A.
Ozone (O3)
B.
Nitrogen (N2)
C.
Carbon Dioxide (CO2)
D.
Sulphur Dioxide (SO2)
Question No. 17
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The relationship between a fungus and algae in a lichen is an example of:
A.
Parasitism
B.
Commensalism
C.
Competition
D.
Mutualism
Question No. 18
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What does CITES (Convention on International Trade in Endangered Species of Wild Fauna and Flora) aim to regulate?
A.
Cross-border movement of hazardous waste
B.
International trade of wildlife and their products
C.
The release of greenhouse gases
D.
The use of chemical fertilizers in agriculture
Question No. 19
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Soil conservation is crucial for sustainable agriculture. Which practice is most effective in preventing wind and water erosion on sloped land?
A.
Overgrazing
B.
Clear-cutting
C.
Terrace farming
D.
Monoculture cropping
Question No. 20
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An organism's specific habitat, its feeding relationships, and its other interactions with the biotic and abiotic factors constitute its:
A.
Ecological pyramid
B.
Ecosystem
C.
Trophic level
D.
Ecological niche
Question No. 21
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Acid rain is primarily caused by the atmospheric pollution from:
A.
Carbon monoxide and methane
B.
Ozone and chlorofluorocarbons
C.
Oxides of sulfur and nitrogen
D.
Dust and particulate matter
Question No. 22
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Which of the following best represents an 'ecosystem service'?
A.
Timber harvested from a forest
B.
Pollination of crops by bees
C.
The aesthetic beauty of a mountain range
D.
Mineral extraction from the earth
Question No. 23
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The 'Green Revolution' in India, while increasing food production, had some negative ecological consequences, such as:
A.
Increased biodiversity of crop species
B.
Reduced dependency on groundwater
C.
Depletion of soil nutrients and groundwater levels
D.
Afforestation and habitat restoration
Question No. 24
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The transition zone between two distinct ecosystems, such as a forest and a grassland, is known as a(n):
A.
Ecocline
B.
Ecotone
C.
Ecotype
D.
Ecosphere
Question No. 25
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Social forestry programs aim to:
A.
Create exclusive forest reserves for timber industry
B.
Convert fertile agricultural land into forests
C.
Involve local communities in the management and protection of forests for their own benefit
D.
Introduce exotic, fast-growing tree species everywhere
Question No. 26
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The Montreal Protocol is an international treaty designed to protect the:
A.
Ozone layer by phasing out the production of numerous substances responsible for ozone depletion
B.
Whale populations from over-harvesting
C.
Global climate from greenhouse gas emissions
D.
Biodiversity in tropical rainforests
Question No. 27
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What is the primary objective of creating a Biosphere Reserve?
A.
To focus solely on protecting a single flagship species like the tiger
B.
To promote tourism and recreational activities
C.
To conserve biodiversity, promote sustainable development, and support research and education
D.
To establish an area for commercial logging and mining
Question No. 28
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Rainwater harvesting is a technique primarily used for:
A.
Generating hydroelectric power
B.
Conserving and recharging groundwater
C.
Treating saline water
D.
Preventing soil liquefaction
Question No. 29
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The presence of lichens on trees is often used as an indicator for:
A.
The age of the tree
B.
Air quality, especially for sulfur dioxide pollution
C.
The amount of rainfall in the area
D.
The fertility of the soil
Question No. 30
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In the context of resource management, what does 'decentralization' imply?
A.
Transferring control of resources from a central government to private corporations
B.
Concentrating all decision-making power within a single national agency
C.
Shifting control and management responsibility of resources to local communities and governments
D.
Exporting natural resources to other countries for processing
Question No. 31
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Which of the following human activities is the single largest cause of biodiversity loss worldwide?
A.
Pollution
B.
Overharvesting
C.
Introduction of invasive species
D.
Habitat destruction and fragmentation
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