Which of the following statements are correct?
(i) The glass sheet in a solar cooker is responsible for green house effect.
(ii) Acid rain happens because earth’s atmosphere contains acids.
(iii) Biomass is a renewable source of energy.
(iv) Non-conventional sources of energy are nuclear, solar, biomass etc.
(v) Sun can be taken as inexhaustible source of energy.
A(i) and (iv) only
B (ii) and (iii) only
C (iii), (iv) and (v) only
D (i), (iii) and (v) only
the ans is not correct... (iv) is also correct