NSO Level 1- Science Olympiad (SOF) Class 10: Questions 806 - 808 of 986

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Question number: 806

» Our Environment and Its Management

Edit
MCQ▾

Question

Which of the following statement is/are true for Secondary Consumers and Tertiary Consumers?

(i) Secondary consumers are the animals who feed on Producers

(ii) They are the ones who feed on the secondary consumers

(iii) Lion, hawks, snakes, coyotes, wolves, and spiders are few terrestrial secondary consumers

Choices

Choice (4) Response

a.

(i) and (iii)

b.

(ii) and (iii)

c.

(i) and (ii)

d.

All statements are correct

Question number: 807

» Light - Reflection and Refraction

Edit
MCQ▾

Question

The convex lens

Choices

Choice (4) Response

a.

Magnifies the image

b.

Sharpens the image

c.

Increase the contrast of the image

d.

Shrinks the image

Question number: 808

» Our Environment and Its Management

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Match List-Ⅰ List-Ⅱ▾

Question

Match column I and column II and select the correct option from the codes given below.

List-Ⅰ (Column I) List-Ⅱ (Column II)

(A)

Biodegradable substances

(i)

It consists of a number of interconnected food chains, involving many organisms

(B)

Food web

(ii)

Substances that cannot be broken down into simpler ones by biological processes

(C)

Food chain

(iii)

It is a series of organisms feeding on one another

(D)

Non-biodegradable substances

(iv)

Substances that are broken down into simpler substances by biological processes

Choices

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

a.

  • (ii)
  • (i)
  • (iv)
  • (iii)

b.

  • (iii)
  • (ii)
  • (iv)
  • (i)

c.

  • (iv)
  • (i)
  • (iii)
  • (ii)

d.

  • (iv)
  • (ii)
  • (iii)
  • (i)