Answer:
In a physical change the appearance or form of the matter changes but the kind of matter in the substance does not. However in a chemical change, the kind of matter changes and at least one new substance with new properties is formed. The distinction between physical and chemical change is not clear cut.
Explanation:
An insect needs mud wallows to breed; that insect pollinates several flowers in that ecosystem.
When a bond is formed, energy is released into the environment. That is because it is an exothermic reaction, it releases energy. <span />
Answer:
biosphere
Explanation:
Living things need water (hydrosphere), chemicals from the atmosphere, and nutrients gained by eating things in the biosphere.