Answer:
The atoms have the same chemical symbol.
Answer:
1230
Explanation:
1.20×1025=1230 is your answer
Explanation:
Moreover, increasing use of fossil fuels also causes serious environmental problems. Hence, there is a pressing need to use renewable energy sources like solar energy, wind, tide, biomass and energy from waste material. (i) it reduces the dependence on fossil fuels for energy. (ii) they donot produces pollution.
Spontaneous at low temperatures.