Why is the mass of the earth important to maintain life as we know it?
A)If we had more or less mass,the earth would not have plate tectonics and would be covered entirely by water.
B)If it had more or less mass,the atmosphere would be very different with either too much ammonia and methane or too little oxygen and water.
C)If the earth's mass were significantly different,we would be bombarded by cosmic rays that would strip away our atmosphere.
D)If the earth's mass were greater,we would be bombarded by meteorites and if it were smaller,we would not be able to hold the moon in orbit.

Question

Quizplus · Accepted Answer

The mass of the Earth is important because it determines the strength of its gravitational force, which in turn affects the composition and properties of its atmosphere. If the Earth had more or less mass, the atmosphere would be very different, with either too much ammonia and methane, or too little oxygen and water. This would make it difficult or impossible for life as we know it to exist.

Why Is the Mass of the Earth Important to Maintain