When a comet is observed for the first time, astronomers enter information about its position, size, and motion into computer simulations in order to

A.
analyze it for animal life.

B.
measure the length of its tail.

C.
predict its orbital path.

D.
estimate its brightness.

Mass of water is smething that you froma drug test or sum girl ya

Tolerance to high levels of salinity

Large asteroid and comet impacts. because they can have a huge impact on the environment, such as a loss of land, and crust on the earth with the big holes they produce. on the other hand, volcanic eruptions can also cause change within the environment by producing land, but im actually not quite sure which one would be a better answer, hopefully you read this and didnt just flat out choose the first sentence i have spoken! your welcome~