NSO Level 1- Science Olympiad (SOF) Class 9: Questions 238 - 242 of 1128

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Question 238

Question

Match List-Ⅰ List-Ⅱ▾

Match the following.

List-Ⅰ (Column I)List-Ⅱ (Column II)
(A)

Disadvantages of mining

(i)

Death due to collapsing of roof top

(B)

Open cast mining

(ii)

Almost all types of pollution

(C)

Deep mining

(iii)

Development of secondary sectors

(D)

Advantages of mining

(iv)

Hampered scenic beauty

Choices

Choice (4)Response
  • (A)
  • (B)
  • (C)
  • (D)

a.

  • (i)
  • (iv)
  • (iii)
  • (ii)

b.

  • (ii)
  • (iv)
  • (i)
  • (iii)

c.

  • (ii)
  • (iii)
  • (i)
  • (iv)

d.

  • (iv)
  • (ii)
  • (i)
  • (iii)

Question 239

Question

MCQ▾

If there were no greenhouse gases then what would have happened to Earth՚s temperature

Choices

Choice (4)Response

a.

Decrease in temperature

b.

Harmful UV rays reaching to the Earth՚s surface

c.

Remains unaffected

d.

Increase in temperature

Question 240

Question

MCQ▾

Pisciculture is related with

Choices

Choice (4)Response

a.

Earthworms

b.

Honey bee

c.

Fish

d.

Silkworm

Question 241

Question

MCQ▾

Red data book is

Choices

Choice (4)Response

a.

Collection of extinct plants and animals

b.

Collection of endangered plants only

c.

Collection of endangered animals only

d.

Collection of endangered plants and animals

Question 242

Question

Match List-Ⅰ List-Ⅱ▾

Match the following.

List-Ⅰ (Column I)List-Ⅱ (Column II)
(A)

Peat

(i)

Fossilization

(B)

Ozone layer

(ii)

Best for plant growth

(C)

Deforestation

(iii)

Protection to life from UV rays

(D)

Loamy soil

(iv)

Loss of biodiversity

Choices

Choice (4)Response
  • (A)
  • (B)
  • (C)
  • (D)

a.

  • (i)
  • (iv)
  • (iii)
  • (ii)

b.

  • (i)
  • (iv)
  • (ii)
  • (iii)

c.

  • (i)
  • (iii)
  • (ii)
  • (iv)

d.

  • (i)
  • (iii)
  • (iv)
  • (ii)

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