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Subject :NSO    Class : Class 6

Which of the following activities/processes can lead to global warming?
(i) Burning of fuels
(ii) Using mass transport systems
(iii) Using CFCs in refrigerators
(iv) Growing dense vegetations
(v) Increasing use of air conditioners
(vi) Digestion in cattle
(vii) Using electricity carefully

A(i), (iii), (v) and (vi) only
B(i), (iii) and (v) only
C(i), (ii), (iii) and (iv) only
D(i), (ii), (iii), (iv) and (vi) only


Ans 1:

Class : Class 6
how "Digestion in cattle" leads to global warming? Kindly explain if someone knows

Ans 2:

Class : Class 6

Ans 3:

Class : Class 6
in digesting their high fibre diet,cows emit methane as a byproduct

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