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1.
In the following Questions, the Assertion and Reason have been put forward. Read the statements carefully and choose the correct alternative from the following:
2.
Spent slurry (Bio-waste after obtaining biogas) is used as
3.
One major problem in harnessing nuclear energy is
4.
A device in which electricity is produced by the process of controlled nuclear fission reaction is called
5.
Ocean thermal energy is produced due to
6.
Which element is used in solar cells?
7.
Which of the following gases is the main con-stituent of natural gas?
8.
Which of the following is the ultimate source of energy?
9.
Solar energy can be directly converted to elec-trical energy by which of the following de-vices?
10.
Biogas is formed in the