Talk about the role of earth’s gravity in life

The role of the earth's gravity in life

1. All materials on the surface of the earth are in contact with the earth or indirectly in contact with the earth. The closer to the earth's surface, the greater the atmospheric pressure. If a vase falls to the bottom, It is also broken due to the earth's gravity;

2. The earth's magnetic field is mainly the dual magnetic field of the north and south poles, which originates from deep inside the earth. There are many theories about the cause of the earth's main magnetic field, among which the most reasonable explanation is power generation. Machine theory. This theory believes that the molten iron and nickel alloys in the outer core of the earth can flow, and the flow generates electric current. The generation of electric current also maintains the continued flow of matter, and this cycle continues to maintain the main body. The existence of magnetic field.