Q5. Answer in brief.
(a) Why should we conserve biodiversity?
Answer- Biodiversity is referred to as a variety of various life forms such as plant, animal and macro organisms in an area. All the organisms/ plants/ animals have an interrelationship. They all depend on each other. We should conserve biodiversity for maintaining food chain. If the food chain will be disturbed it may affect the whole ecosystem.
(b) Protected forests are also not completely safe for wild animals. Why?
Answer- Because the people who live near the forests, they use the forest’s resource to full-fill their requirements. So, they used to kill and sell wild animals.
(c) Some tribals depend on the jungle. How?
Answer- Because tribals got shelter, food etc from forests. They depend on the jungle to full fill their own requirements.
(d) What are the causes and consequences of deforestation?
Answer- Causes of deforestation-
- Forest fire
- People used to cut tree for their requirements like making furniture, houses etc.
- Procuring land for cultivation.
- Soil erosion
- Temperature will increase
- A decrease in groundwater level
- Global warming
- Loss of biodiversity.
(e) What is Red Data Book?
Answer- Red data book is a sourcebook which keeps internation record of all endangered plants and animals species. This book is maintained by IUCN.
(f) What do you understand by the term migration?
Answer- Migration means movement of organisms or group of organism from its own habitat to other place. They migrate to avoid inhabitable climatic condition or for breeding.