A. Tick the correct answer:-

1. D 2. A 3. C 4. B 

B. Differentiate between the following:-

1. Vulnerable species meant for endanger species.

       Threatened species has chance of extinct.

2. Wildlife sanctuaries are habitat for wildlife.

        National park is a parkway different animals kept.

3. Biosphere reserve is a life reserve.

     Forest reserve are the large tracts of forest which come under direct control of government for their protection.

C. Give one word answer for each of the following:-

1. Biotic component 2. Extinct species 3. Endangered species 4. Recycling.

D. Match column A with column B:-

1. Drug 2. Threatened species 3. WWF 4. Wildlife sanctuaries 5. Paper

E. Give two examples for each of the following:-

1. Dinosaur ,Dodo 2. Malabar wilt sanctuary, Okla bird sanctuary 3. Panna reserve at MP, Nanda Devi at Uttarakhand.

F. Give reason for each of the following:-

1. Importance to conserve biodiversity for maintaining the ecological balance in nature.

2. Endemic species are found in a particular geographical area because they are found in that particular area.

3. To save tigers from extinction.

4. We should  recycle paper because it is very essential item.

G. Write true or false:-

1. True 2. True 3.True 4. True 5. True.

H. Circle the odd one out:-

1. Climate 2. Habitat 3. Deforestation.

I. Fill in the blanks:-

1. Ecological 2.Habitat loss 3.Biodiversity 4. Environment.

J. Short answer question:-

1. Biodiversity consists of flora, fauna and microorganisms.

2. Due to land, water and air pollution lead to loss of biodiversity.

3. For conservation of biodiversity of strategies for protected area for plants and animals, restoring  ecosystem 

4. Project Elephant is a measure to taken conserve elephant population.

5. Recycling removes various waste material. As paper plastic etc.

K. Long answer question:-

1. Biodiversity consists of flora, fauna and microorganisms. Importance of biodiversity are:-

Gives valuable products like timber, wood etc.

Food and shelter to wildlife.

Clean air to living beings.

Climate of a region.

Maintain water cycle.

2. Loss of biodiversity

1. Natural causes

(a). Climate changes like rain,droughs, wind etc.

2. Human activities

Deforestation.

Habitat loss-growing population, of industrialisation.

Extinct species- species that no longer exist on the earth either due to human activities.

3. Habitat is the place where plants and animals live.

       Due to overgrazing grassland decreases there by reduce food for animals.

     Over explotation of land reduces plant cover which threat animal population.

4.Loss of biodiversity

1. Natural causes

(a). Climate changes like rain,droughs, wind etc.

2. Human activities

Deforestation.

Habitat loss-growing population, of industrialisation.

Extinct species- species that no longer exist on the earth either due to human activities.

5. Conservation of forest and wildlife.

Planning harvesting -planned cut of trees.

Afforestation- planting trees.

Protection from forest fire is provided by a spring fire extinguishing chemicals.

Protection from insect and pests- by removing infected trees and using insecticides.