Energy input would be what's giving the source energy. Energy output is what energy it's giving out.
Answer:
It is a type of chemical bond that generates two oppositely charged ions. In ionic bonds, the metal loses electrons to become a positively charged cation, whereas the nonmetal accepts those electrons to become a negatively charged anion.
Explanation:
Like all animals the noises they make are to warn off predators, and mating call. IDk
Answer:
food stuff and building materials
Explanation:
why is because the produce food stuff more than buidling materials