NSO Level 2 Class – 4 2013 Part 1 with Solutions and Explanations at Doorsteptutor. Com

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1. Swati left two similar pots, X and Y, having green plants near her window for a week which she used to water regularly. Based on the given diagrams, which of the following statements could be true?

1. The plant in X grows faster than the plants in Y.

2. The plants in Y compete for nutrients and space.

3. The plant in X gets insufficient sunlight and air.

A. 1 and 2 only

B. 1 and 3 only

C. 2 and 3 only

D. 1,2 and 3

2. Two students designed the experiment shown here to study soil erosion. A steady stream of water flows from the faucet into the tray holding sand and gravel. The water forms a channel by eroding some of the sand and gravel. How can the students increase the amount of sand and gravel being eroded?

Tray with Sand and Gravel

A. By increasing the water temperature

B. By adding coarse gravel to the tray

C. By increasing the tilt of the tray

D. By reducing the flow of water

3. Select the action which involves a force different from the other three.

A. Stretching a spring

B Kicking a football

C. Pressing a button on keyboard

D. Shoving a friend

4. Different plants have different edible parts as shown in the classification chart. Which one of the following can be a, b, c and d?

a b c d

A. Onion, Ginger, Cabbage, Carrot

B. Carrot, Turmeric, Broccoli, Coconut

C. Turnip, Radish, Cauliflower, Potato

D. Radish, Onion , Cabbage, Ginger

Co cccc

Edible Parts

5. Two similar pots with similar plants were set up as shown in the figure. Both pots were left in the garden and watered daily with the same amount of water. What will happen to the plants X and Y after a month?

Plant

A. Both plants X and Y will flower, but plant X will have more flowers than plant Y.

B. Plant X will grow taller than plant Y because plant Y will not get sunlight.

C. Plant Y will become bushy and its stem will become woody while plant X will remain as it is.

D. Plant Y will wither due to lack of air while plant X will grow normally.

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