Surrounding a magnet is a magnetic field. surrounding an electron is an electric field. surrounding earth is
a) an alteration in space in which mass experiences a force.
b) a gravitational field.
c) both of these d) neither of these

B. A gravitational field

Explanation:

Surrounding earth is gravitational field. Gravitational field is a region of space were gravitational force can be felt and gravitational force is the gravitational pull on the surface of the earth. The presence of this gravity is what allow us to be able to walk freely without falling. It also make us jump up and be able to land back on the ground. Assuming there are no force of gravity in the surface of the earth, there won't be any possibility of landing back on the ground after jumping.

when heated, the valance electrons increased their speed and transferred the heat from electron to electron.   i just took the test.

force tends to be low and long diustance masses are high