Question

Why do we need energy even during sleep.
18.
19.
What type of a reaction is a source of solar energy inside the
What steps can be taken to minimise the environn
20-
aken to minimise the environmental pollution by burning of fossil fue
nat energy transformation takes place in hydro-electric power stations​

Answer 1

for the surviving and the work of digestive system and lungs and excretory system.

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