Answer:
always point toward the sun
Explanation:
are only seen when comets are near the sun
The characteristic "tail" of a comet is only visible when it is close to the sun. The center of a comet is a solid mass, called the nucleus, made of ice, frozen gas, rock, and dust.
Solar energy
This is because the sun is used
1) full-cost pricing, (2) win-win solutions, and (3) a responsibility to future generations.
Nutrients makes the most sense.