Question

1. explain what effect gravity has on earths spheres.
2. how do rivers and moving water affect the land?

Explanation:

For question 3, gravity holds the atmosphere close to Earth, affects ocean tides, and causes water to flow downhill in hydro - spheres. For question 4, rivers and moving water can erode soil and rock, deposit sediments, and create landforms like valleys and deltas.

Answer:

1. Gravity holds the atmosphere in place, influences tides, and drives water flow in hydro - spheres.
2. Rivers and moving water erode, deposit sediments, and create landforms.