What is a comet and where do comets come from?

Explanation:

1. a comet is an icy small solar system body that when passing close to the Sun warms and begins to release gas has a process called outgassing. this produces a visible atmosphere, and sometimes also a tail.

2. comets have two sources. long period comets originate from the Oort cloud. short period comets originate from the Kuiper belt

for  example, forests have higher evapotranspiration than other ecosystems,  such  as grasslands, because of their deeper roots and greater leaf area. thus forests have a net moistening effect on the atmosphere and become a moisture source for downwind ecosystems.

i don't know. if i were you, i would search it up online : d