I thought it would of been D but I’m not sure now
Answer:
Energy transferred during a chemical reaction. ... In an exothermic reaction, the potential energy of the system goes down, and heat is given out. In an endothermic reaction, the potential energy of the system goes up, and heat is taken in.
Explanation:
Option 1 seems to be correct
Answer:
packing down soil. building drains with outlets. increasing the slopes of riverbanks.
3% of earth's water is actually fresh, not salty ocean water