CONSERVATION OF PLANTS AND ANIMALS CLASS-8

1.What is scrap paper ?
2.Write 3 ways by which you can              reduce wastage of paper.
3.What is recycling of paper ?
4.How can re-establishment of flora and fauna be increased ?
5.What is reforestation ?
6.Write different hypothesis put forward to explain migration of birds?
7.Write full form of IUCN ?
8.Write 2 ways in which Red Data Book is helpful.
9.Write 3 benefits  of projects and  programmes concerning forest.
10.What is colonisation ?
11.Write 3 ways in which living organisms is an ecosystem ?
12.Name a bird which is extinct because they were hunted too much for food.
13.Write three ways which can result in habitat loss .
14.To which region is lion tailed macaque and orange breasted sunbird endemic?
15.What are vulnerable species  ?
16.What are endangered species ?
17.Name three species that are extinct ?
18.Differentiate between National Park and Wildlife Sanctuary .
19.Why is Gahirmatha Turtle Sanctuary in Orissa famous?
20.Write names of five migratory birds ?
21.Name the first National Park of India ?
22.Why is Kaziranga National Park famous ?
23..Where is Bandipur National Park? Which animal is protected here ?
24.Write names of four Biosphere Reserve ?
25.What is conservation ?
26.Why is conservation  of plants and animals a challenging task ?
27.What is biodiversity ?What role does it play in an ecosystem ?
28.How does deforestation lead to    desertification ?
29.Drought is a consequence of                                         deforestation .Explain .
30.Write five uses of forest .

Comments

Post a Comment

Popular posts from this blog

Combustion

1. Gaseous fuels are considered the best.Write four poins in support of your answer. 2. What causes smog in winters? 3. If the amount of carbon dioxide increases in the atmosphere,what can be the effects of it? 4. What is global warming? Write it's one useful and one harmful effect of it. 5. What is acid rain? Write it's two harmful effects. 6. What is CNG?  Write three uses of CNG.
Read more

CELL CLASS-8

Image
1.What is a cell ? 2.Why are cells known as building blocks of life ? 3.Cell is basic structural and functional unit of life.Explain the statement. 4.What are unicellular organisms ? 5.Define multicellular organisms. 6.Name two unicellular organisms. 7.Name two multicellular organisms. 8.Who observed cell for the first time ? 9.Why do organisms differ in size ? 10.Why do different organisms have different shapes ? 11.Name the smallest cell. 12.Name the longest cell. 13.Name the largest cell. 14. Why do nerve cell posses a long fiber-like structure ? 15.Write the full form of PPLO. 16.What is the importance of yolk in hen`s egg ? 17.What is the life span of red blood cell ? 18.Name the stain used to stain human cheek cell ? 19.Name the stain for onion peel cell ? 20.White blood cell is like an organism.Name the organism. 21.What are cell organelles ? 22.Name the outer covering of an animal cell ? 23.What is a cell wall ? 24.Write 2 functions of cell wall ? 25
Read more

Combustion

1. If you hold a long copper wire in a candle flame, copper wire gets red hot in the non - luminous part whereas it just gets blackened in the luminous part. Why? 2. Goldsmiths often use a mettalic blow to direct non luminous part of flame on gold to give shape to gold ornaments. Why? 3. You observe circular greyish black ring formed on the glass slide in which there is no deposition in the middle of the ring. Why? 4. Water should not be used to extinguish fire caused by electric short circuit. Justify your statement. 5. Two paper cups, one filled with water and other empty, are heated over a bunsen burner. Empty cup catches fire immediately whereas the other does not. Why?
Read more