Question

A group of scientists examined a meteorite from Mars and found a carbon-rich substance that is produced when microorganisms decay. They concluded that the meteorite provided evidence there was once life on Mars. Why is this an emerging idea? Check all that apply.
It is unlikely that there was life on Mars.

Other scientists disagree about the origin of the carbon-rich substance.

The scientists only studied one meteorite.

There is a scientific consensus that life exists on other planets.

Answer 1

So,

There is a scientific consensus that life exists on other planets

and

The scientists only studied one meteorite

The first one because the other ones don't make sense, and because it is a scientific consensus. The latter because they only studied one, and imagine if they studied other ones...

Answer 2

Answer:

-Other scientists disagree about the origin of the carbon-rich substance.

-The scientists only studied one meteorite.

Explanation:

options 2 and 3