NSO (International Science Olympiad) Class 6 Level 2 2013 Part 5 Download All the Papers for 2021 Exam

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Q-39. The graph below shows the number of guppies in four tanks, P, Q, R and S, at the end of March and April.

Graph Shows Number of Guppies

Which one of the following statements is false?

A. Predators may have been introduced into Tank P in April.

B. All the guppies in Tank S could have been either male or female only.

C. There were more guppies born in April in Tank R than Tank Q.

D. The death rates of guppies in Tank P and Tank R in April were greater than the birth rates.

Q-40. Study the food chain given below.

If organism Y is removed from the food chain above, which one of the following graphs shows the changes in the other populations?

A.

Graphs Changes Population

B.

Graphs Changes Population

C.

Graphs Changes Population

D.

Graphs Changes Population

Q-41. Study the given pattern carefully and select the one with same pattern.

I POTATO: SPINACH: ONION: CABBAGE I

A. RADISH: CAULIFLOWER: CARROT: BROCCOLI

B. BANANA: TURNIP: RICE: SUGARCANE

C. MANGO: CORIANDER: WHEAT: APPLE

D. CARROT: TURNIP: RADISH: GINGER

Q-42. Best fibres are found in the stems of the plants and provide strength to the plants. They are generally very long. Example of Best fibre is

A. Flax

B. Hemp

C. Jute

D. All of these

Q-43. A group of children wanted to find out the effect of four samples of water on the growth and reproduction of aquatic plants. Which beaker will have the least number of aquatic plants after three weeks?

A.

Floating Aquatic Plants

B.

Floating Aquatic Plants

C.

Floating Aquatic Plants

D.

Floating Aquatic Plants

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