Which statement best describes the two tails of a comet? heating by the sun, the comets rotation, gravitational effects of nearby planets, or solar wind

Heating by the sun.

A comet tail, and coma are features visible in comets when they are illuminated by the Sun.

Illuminated; lit with bright lights.

because natural gas is colorless, odorless, and tasteless, distributors add mercaptan (a chemical that smells like sulfur) to give natural gas a distinct unpleasant odor (it smells like rotten eggs). they locate the types of rock that are likely to contain natural gas deposits.