The answer would be water. If this isn’t it I’m sorry , I’ve tried!
The first questions answer is a community.
The second questions answer is a desert.
Hope this helps.
Endothermic reactions use or absorbs energy for the process to occur. Exothermic reactions release energy to the surroundings as the process occurs. In endothermic reactions, reactants are more stable than products while in exothermic reactions, products are more stable than reactants.