HARD
8th CBSE
IMPORTANT
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Nisha performs an experiment with two potted plants. She keeps the pots in sunlight and waters them equally. She adds manure to the soil in Pot 1.

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She creates a table to record her observations.

  Manure added Height of the plant at the start of the experiment Height of the plant    
after 4 weeks
Plant 1     Yes    
Plant 2 No    

What is Nisha investigating?

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Important Questions on Crop Production and Management

EASY
8th CBSE
IMPORTANT
Take a beaker and fill half of it with water. Put some wheat seeds in it, stir it and wait for some time. Which of the following holds true regarding the observation and inference of this experiment?
HARD
8th CBSE
IMPORTANT

Nila performs an experiment with two potted plants. She keeps the pots in sunlight and waters them equally. She adds manure to the soil in Pot 1. After a few days, she can see changes in the Pot 1 plant. 

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What is Nila investigating?

HARD
8th CBSE
IMPORTANT

An experiment was conducted to study the effect of a new fertilizer on the growth of two varieties of wheat. The data for growth of the plants from germination to next 10 days is shown in the figure. All other growing conditions such as water and sunlight were kept the same for both the varieties. Which of the following is the most reasonable conclusion you can draw from the data?

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EASY
8th CBSE
IMPORTANT

Read the statements given below.

(i) Seeds require moisture for germination.
(ii) Plants can absorb nutrients mostly in dissolved form.
(iii) Irrigation protects crops from both frost and hot air currents.
(iv) Irrigation improves soil texture.

Choose the combination of statements that indicate the need to irrigate crops.

EASY
8th CBSE
IMPORTANT

In the given picture of a hoe, the part that is placed on the bullock's neck is

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MEDIUM
8th CBSE
IMPORTANT
Anu took a beaker and filled it three-fourths with water. She put some seeds of a gram into the beaker and left it undisturbed for about 30 minutes. Which of the following would be her observation?
EASY
8th CBSE
IMPORTANT
Which of the following is not a correct statement for sowing seeds?