The answer is <span>insect and pest populations decreased.
</span>
DDT (dichlorodiphenyltrichloroethane) was used as an insecticide which is a substance used to kill insects. That resulted in decrease in insect and pest populations. It is a persistent and non-degradable insecticide, but as well organic pollutant readily accumulated to soils and consequently affects organisms.
Explanation:
New ocean crust is formed at the mid ocean ridges. The new crust is then pushed away from the ridge as newer crust comes to the surface. The ocean crust then spreads out enlarging the ocean. The farer away from the ridge the ocean crust is the older the crust
Answer:
The plant stores them as starch
Explanation:
A typical plant synthesizes sugars from photosynthesis by using water and carbon dioxide.

Parts of the sugar synthesized via photosynthesis is used to generate energy during respiration. The energy generated is useful for other metabolic processes in the plant's body.

<em>The remaining sugar is utilized in the synthesis of starch and stored in the various tissues of the plant.</em>
Answer:
A germline mutation occurs in a sperm cell or an egg cell and is passed directly from a parent to a child at the time of conception.
Explanation:
The parts of the plasma membrane is mentioned in the diagram below: