NSO Level 1- Science Olympiad (SOF) Class 10: Questions 857 - 860 of 986

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Question number: 857

» Our Environment and Its Management

Edit
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)

Bio-magnification

(i)

A man-made ecosystem

(B)

Parasites

(ii)

An ecosystem consists of biotic components and abiotic components of environment

(C)

Aquarium

(iii)

Accumulation of chemicals at the successive trophic levels of a food chain

(D)

Ecosystem

(iv)

Organisms which obtain food from other living organisms

Choices

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

a.

  • (ii)
  • (iv)
  • (i)
  • (iii)

b.

  • (ii)
  • (i)
  • (iv)
  • (iii)

c.

  • (iii)
  • (ii)
  • (iv)
  • (i)

d.

  • (iii)
  • (iv)
  • (i)
  • (ii)

Question number: 858

» Our Environment and Its Management

Edit
MCQ▾

Question

The figure shown food chain in

Image of the shown food chain

Image of the Shown Food Chain

Image of the shown food chain

Choices

Choice (4) Response

a.

Forest

b.

Pond

c.

Grassland

d.

Any of the above

Question number: 859

» Carbon and Its Componds

Edit
MCQ▾

Question

Molecular bond occurs in

Choices

Choice (4) Response

a.

Iron bond

b.

Covalent bond

c.

Double Bond

d.

Question does not provide sufficient data or is vague

Question number: 860

» Magnetic Effects of Electric Current

Edit
MCQ▾

Question

Read the given statements and mark the correct option

Statement 1: The main advantages of tidal energy is cost of construction is less

Statement 2: The tides are caused due to gravitational force of attraction exerted by the moon on the water of the ocean

Choices

Choice (4) Response

a.

Only statement 2 is correct

b.

Only statement 1 is correct

c.

All of the above

d.

Question does not provide sufficient data or is vague