AKSHITA.KRISHNAN
from
DPS Noida, Noida
Subject :NSO Class : Class 3
Gases represented by 1 and 2 in the given picture arerespectively
AOxygen, Carbon dioxide
BOxygen, Nitrogen
CNitrogen, Carbon dioxide
DCarbon dioxide, Oxygen
Ans 2:
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Abhijay Saha
from
Delhi Public School, Megacity, Kolkata
Class : Class 3
We Don't know that plants breath oxygen in night
Ans 4:
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Advika Narkar
from
The Shishukunj International School, Jhalaria Campus, Indore
Class : Class 7
Sorry ,answer is A .I gave wrong explanation why .You have told arerespectively, so gas 1 is carbon dioxide and gas 2 is oxygen.You have given the order as 1 and 2 i.e. carbon dioxide and oxygen.So ,we will say it as 2 and 1 i.e oxygen and carbon dioxide .Hence answer is A.
Ans 5:
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Advika Narkar
from
The Shishukunj International School, Jhalaria Campus, Indore
Class : Class 7
ans is A as the order of gases will not change
Ans 6:
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SARTHAK.SHUKLA
from
Delhi Public School, Noida, Noida
Class : Class 3
Answer is D because at night plants take in oxygen and give out carbon-di-oxide whereas we humans always take in oxygen and give out carbon-di-oxide.