Biodiversity And Its Conservation Chapter-Wise Test 1

Correct answer Carries: 4.

Wrong Answer Carries: -1.

Which of the following is a correct statement about ecosystem services?

Ecosystem services include water purification and nutrient cycling.
Ecosystem services only benefit forest-dwelling species.
Ecosystem services are not important for human life.
Ecosystem services are unrelated to biodiversity.
1

Ecosystem services such as water purification, nutrient cycling, and climate regulation are crucial for both ecosystems and human survival.

Which of the following is an incorrect statement about the role of forests in biodiversity conservation?

Forests provide habitat to a wide range of species.
Forests help regulate climate and water cycles.
Deforestation increases biodiversity.
Forests store genetic diversity.
3

Deforestation leads to habitat loss and decreases biodiversity by threatening plant and animal species.

Why are sacred groves important for biodiversity conservation?

They are used for commercial logging
They act as refuges for rare and endangered species
They promote urbanization
They are artificially created forests
2

Sacred groves are patches of forest protected due to religious beliefs, preserving rare and endangered species.

Which of the following statements about keystone species is correct?

Keystone species play a crucial role in maintaining ecosystem balance.
Keystone species have no effect on ecosystem stability.
All species in an ecosystem are keystone species.
Removing a keystone species has no impact on the food web.
1

Keystone species, such as predators or pollinators, have a disproportionately large effect on ecosystem stability.

Which naturalist observed the species-area relationship?

Charles Darwin
Alfred Wallace
Alexander von Humboldt
Gregor Mendel
3

Alexander von Humboldt observed that species richness increases with explored area, but only up to a limit.

Which of the following is a correct statement about the importance of biodiversity?

Biodiversity provides ecosystem services such as pollination and climate regulation.
Biodiversity has no impact on human well-being.
Biodiversity is not important for maintaining ecological balance.
Biodiversity loss has no consequences for ecosystems.
1

Biodiversity is essential for ecosystem services, including pollination, soil fertility, water purification, and climate regulation.

Which of the following statements about biodiversity hotspots is true?

They contain low species richness
They have high levels of species endemism
They are found only in temperate regions
They are defined by their soil type
2

Biodiversity hotspots are regions with high species richness and a high degree of endemism.

Which of the following is an example of ex situ conservation?

National parks
Sacred groves
Botanical gardens
Biodiversity hotspots
3

Ex situ conservation involves removing species from their natural habitats, as done in botanical gardens.

Which of the following is NOT a component of biodiversity?

Genetic diversity
Species diversity
Ecosystem diversity
Climatic diversity
4

Biodiversity consists of genetic, species, and ecosystem diversity, but not climatic diversity.

Which of the following factors contributes most to habitat loss?

Agricultural expansion
Genetic mutation
Species migration
Geological activity
1

Agricultural expansion is a major cause of habitat destruction, leading to biodiversity loss.

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