Yes.
it increases
As depth beneath the Earth's surface increases, both temperature and pressure increase. This is due to the weight of the overlying rock and the Earth's internal heat. The increase in pressure and temperature with depth is known as the geothermal gradient.
the earths surface.
pressure from the heat under the earths surface
air pressure is the highest near the earths surface
Yes. Atmospheric pressure is the pressure caused by air when it exerts pressure on the surface of earth.
It decreases as you move away from the earth surface
Currents of cold sinking air produce regions of higher pressure at the Earth's surface. As air sinks, it compresses and becomes denser, leading to an increase in pressure at the surface. This high pressure often leads to fair weather and clear skies.
on the surfaceNote:Since the earth's composition is not homogeneous, the gravitational acceleration onthe surface is probably less than what it is some small distance below the surface,but it's certainly greater than at the center.
weak and strong,it depends
volcano
mercury