NSO Level 1- Science Olympiad (SOF) Class 8: Questions 419 - 422 of 1076

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Question number: 419

» Conservation of Plants and Animals

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MCQ▾

Question

The breeding place of Flamingo (Hansawar) in India is most likely

Choices

Choice (4) Response

a.

Rann of Kutch

b.

Ghana Vihar

c.

Sambhar Lake

d.

Chilka Lake

Question number: 420

» Conservation of Plants and Animals

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MCQ▾

Question

Saloni plants a tree in the forest area with the help of an organization which has sponsored for afforestation every year on her birthday. How does this activity affect environment?

Choices

Choice (4) Response

a.

It helps to control disasters like flood, drought and landslides

b.

It helps in controlling pollution

c.

It helps in preventing soil erosion

d.

All a. , b. and c. are correct

Question number: 421

» Conservation of Plants and Animals

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MCQ▾

Question

The main cause of deforestation is human activities. Here are some human activities which threats wild life. The most serious activity leading to the extinction of wild life is

Choices

Choice (4) Response

a.

Introducing new species

b.

Polluting the environment

c.

Poaching for valuable animal products

d.

Alteration and destruction of natural habitat

Question number: 422

» Synthetic Fibres and Plastics

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MCQ▾

Question

Classify the following fibres as natural and synthetic

1. Cotton, 2. Rayon, 3. Jute, 4. Linen, 5. Polyester, 6. Nylon, 7. Terry cotton, 8. Wool, 9. Silk, 9. Acrylic, 10. Terylene

Choices

Choice (4) Response

a.

1,2, 3,4, 5 – natural and 6,7, 8,9, 10 - synthetic

b.

1,3, 5,7, 9 – natural and 2,4, 6,8, - synthetic

c.

1,3, 4,8, 9 – natural and 2,5, 6,7, 10 – synthetic

d.

1,2, 4,6, 8 – natural and 3,5, 9,10 – synthetic

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