Rishab
from
OWS, New Delhi
Study the set-ups shown below. Each test tube contains few bean seeds on the cotton wool. Farheen wants to carry out an experiment to show that warmth of the light is needed for germination to take place. Which of the two set-ups should she use?
A P and W
B R and W
C Q and W
D W and X
Ans 5:
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Ans 6:
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Class : Class 5
The ans can also be d as the box is dark as told in the question so it does not have sunlight and will be trapped without suffient amount of air so d can also be Ans!!!!!
Ans 10:
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Ans 11:
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Class : Class 7
No, it is A. R's liquid might absorb oxygen but how will it get CARBON DIOXIDE? So, R cannot be correct. P and W are both damp and both have air. If you read synopsis,seeds can sprout a little bit without sunlight. So, option A is correct.
Ans 13:
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Ans 17:
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Class : Class 5
answer should be B and not A ...................there must be a COMPUTING MISTAKE!!!