Subject :NSO Class : Class 4
Subject :NSO Class : Class 5
Ans 4:
Class : Class 8
The pesticide is partially effective because there is a drop in population after each spraying. Hence, B CANNOT BE THE CORRECT ANSWER.
Ans 6:
Class : Class 7
I think the right answer should be C as when the 3rd spray was conducted the pest started to increase hence right answer answer is CThank you for appreciating me
Ans 9:
Class : Class 10
It is C because after the guy used the 3rd and 4th pesticide the insects started increasing
Ans 10:
Class : Class 7
it should be 'D' but SOF shows the graph is decreasing and increasing which is not possible. it is the wrong graph as this can't happen.
Ans 11:
Class : Class 8
B is answer because when it decreases it is their natural death, otherwise they have become resistant thats why it is decreasing then increasing and not uniform.
Ans 14:
Class : Class 5
IF B IS ANSWER THAN GRAPH SHOULD BE ALMOST UNIFORM.. THE GROWTH IS INCREASING AFTER 3RD-4TH SPRAYING
Ans 18:
Class : Class 5
it is supposed to be D. the graph should be going down slowly and not increasing if the answer was B.
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Subject :NSO Class : Class 5
Ans 16:
Class : Class 5
ANS B!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
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Subject :NSO Class : Class 1
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Subject :NSO Class : Class 7
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Subject :NSO Class : Class 1
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Subject :NSO Class : Class 7
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Subject :NSO Class : Class 5
Ans 5:
Class : Class 6
The correct answer should be B because it has a hairy structure and it can be dispersed by wind .nor its written that this is Xanthium
Ans 11:
Class : Class 4
The picture is not clear and it cannot be said that it is a xanthium neither can it be said it is a dandelion. I went with B. Please show better qualities pictures sof.
Ans 13:
Class : Class 5
Correct answer is A !!! As it is having hair like structure so, it is carried by wind
Ans 17:
Class : Class 10
You are correct ans. is B wind because it seems to be light in weight and also hairs that acts like feathers and also wind can carry only light weight seeds.
Ans 18:
Class : Class 10
I think that laksmi is saying correct because we cannot diffrentiate them as it is not clear that they are spines like in xanthium or feather like in dandelion
Ans 21:
Class : Class 6
The picture given did not look like xanthium neither dandelion ,so it looked like dandelion to me so I went with (B)Please give better images
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Subject :NSO Class : Class 5
Ans 6:
Class : Class 8
Hey, mathamagician. Uh it could also be April 3 since the dates might differ by a few days due to there being many sources.
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Subject :NSO Class : Class 3