Answer:
Plastics are made from natural materials such as cellulose, coal, natural gas, salt and crude oil through a polymerisation or polycondensation process. Plastics are derived from natural, organic materials such as cellulose, coal, natural gas, salt, and crude oil.
The answer is B)Atmosphere
Answer:
A gyre is a large system of rotating ocean currents.
Together, these larger and more permanent currents make up the systems of currents known as gyres.
Explanation:
Answer: C) emperor penguin
Explanation: The others are ectothermic and not endothermic.