Which of the following is not a possible source of energy for chemosynthetic organisms? a. oil b. hydrogen sulfide c. methane d. water

d. water

Explanation:

Chemosynthesis can be define as a process of converting a form of carbon like carbon dioxide, and methane into organic molecules.  Hydrogen sulfide is also used as a source of energy. Also the preserved oil can be used as a source of energy. Water generally produced as a byproduct of the chemosynthesis reaction. For example, the hydrogen sulfide is used as a source of energy for bacteria that live in the hydrothermal vents, the chemosynthesis results in the formation of water, sulfur and carbohydrates. The carbohydrate is used as source of chemical energy.

answer: the exterior temperature of commercial jet planes as they leave the stratosphere and return to the ground increases steadily.

explanation:

the lower most layer of atmosphere is troposphere which extends from 0 to 12 km above the surface of the earth. the temperature initially decreases as distance is increased from the earth's surface. commercial jets fly in lower part of the stratosphere. the stratosphere extends upto 50 km. the temperature in stratosphere starts rising again due to presence of ozone which traps the uv rays.

thus, when the planes leave the stratosphere and return to the ground, the exterior temperature increases steadily.