gravity ground water的意思|示意

Gravity

Gravity is a natural force that causes two physical bodies to be attracted to each other. It is an invisible force that pulls everything towards each other, and this is why items on the Earth's surface, like people and objects, don't float away into space. Gravity is responsible for keeping the Earth and other planets in their orbits around the Sun, and it also affects how our atmosphere and oceans move around the planet.

Ground Water

Ground water is the water that exists below the Earth's surface, usually in aquifers. It is sourced from rain water that has infiltrated the ground, and from surface water that has been absorbed into the ground. Ground water is a valuable resource that can be used for agricultural, industrial, and domestic purposes. Due to its slow rate of replenishment, it is important to conserve this resource and use it responsibly.

Surface Water

Surface water is the water that can be found on the Earth's surface, such as lakes, rivers, and oceans. It is sourced from rain water or melted ice, and it is responsible for replenishing our groundwater and providing drinking water for many people and animals. Due to the vastness of these bodies of water, they are capable of absorbing large amounts of heat, and this helps to regulate the Earth's climate.