Important Questions Test: Conservation of Plants & Animals - Class 8 MCQ

The diversity of genes, species and ecosystems of a region is called biodiversity.

Uncontrolled deforestation leads to destruction of habitats, soil erosion, flash floods, increase of carbon dioxide in the air and global warming.

Drought which is caused due to lack of rains results in decreased food production.

Biosphere is the name given to the region that include all living organisms and all life supporting regions of the earth.

By recycling resources, we can prevent overexploitation of resources and conserve the resources and in turn conserve the environmen

The non-living or abiotic components of an ecosystem are air, water, temperature, soil etc.

Conservation involves keeping the natural environment in its balanced state. Preservation involves keeping some of the earth's resources for future generations.

The introduction of exotic species into an area disturbs the natural ecology balance. They compete with the native species for nutrients, shelter and spread new diseases.

Forests stop soil erosion, provide shelter and thus prevent floods. Forests provide us with oxygen and rainfall.

Shift cultivation is a type of agricultural method in which farmer clears the land by burning forest and cultivate that land for short period of time. Once the soil becomes infertile farmer again clear the another land for cultivation. It is also called as jhum cultivation.

IUCN red list is a book which keeps the record of all the endangered plants and animals.

There are various projects taken up by the Government which have helped in restoring the wildlife. Ban on hunting and sale of products from wildlife, afforestation, declaring forests as reserved areas, establishing national parks and sanctuaries are the steps, helpful in restoring the wildlife.

The root system of many plants especially grasses, have high soil binding capacity and thus help in the prevention of soil erosion.

Deforestation causes soil erosion causes desertification and floods. It can be prevented by afforestation, proper land management and preventing overgrazing.

Conservation helps to prevent extinction of endangered species

Plants known as flora and animals, Fauna are living resources in nature.

An animal on the verge of extinction is called an endangered animal.

Habitat destruction, over use of natural resources and manss interference with nature pose a threat to biodiversity.

Biological imbalance is a consequence of man's interference with nature.

- Establishing wildlife sanctuaries is key to conserving forests and wildlife.
- Sanctuaries protect natural habitats, allowing ecosystems to thrive without human interference.
- They provide a safe haven for endangered species, aiding in their recovery and preventing extinction.
- Sanctuaries also support biodiversity by preserving different species and their habitats.
- By maintaining ecological balance, they contribute to sustainable environmental health.