An astronaut compares the time passing on a watch worn while on a mission orbiting earth with an identical watch on earth
the astronaut's watch shows that two hours have passed.
what would the watch on earth show?
less than two hours have passed because time passes more slowly in areas with stronger gravitational fields
o more than two hours have passed because time passes faster in areas with stronger gravitational fields
less than two hours have passed because time passes more slowly in areas with weaker gravitational fields.
more than two hours have passed because time passes faster in areas with weaker gravitational fields.

Less than two hours have passed because time passes more slowly in areas with stronger gravitational fields.

Option A

Explanation:

Einstein discovered the concept called general relativity that is used to predict the space-time. Also, he found that the time and space were conjoined into a continuum as space-time. He proved that the space-time is wrapped and twisted due to the earth's rotation.

He also proved that time will not pass for everyone at the same rate. A fast-moving person can experience that time passing relatively slower than a person without motion. And this difference between the observation of time is called time dilation.

Also, when you are far away from the earth's surface the time goes faster than the time on the earth's surface. This phenomenon is known as gravitational time dilation.

While traveling to space, a huge amount of speed is required for a mass object to escape the strong gravitational force of the earth. Thus the strong gravity curves the space time and shows the time slower meanwhile the normal person in the earth has time running normally.

substitution is the answer in this case