The earth is a romantic and warm speck of dust in a vast universe

Earth is the third planet from the sun and the only body known to harbor and support life. About 29.2% of the earth's surface is made up of continents and islands. The remaining 70.8 percent is covered by water, mostly by oceans, bays and other bodies of salt water, but also by lakes, rivers and other bodies of fresh water, which together make up the hydrosphere. Most of the polar regions of the earth are covered in ice.
Earth's outer layer is divided into several rigid tectonic plates that have migrated across the surface over millions of years, while its interior remains active, with a solid iron core, a liquid outer core that generates the Earth's magnetic field, and a convective mantle that drives plate tectonics. The earth's atmosphere consists mainly of nitrogen and oxygen. The tropics receive more solar energy than the polar regions and redistribute it through atmospheric and ocean circulation. Greenhouse gases also play an important role in regulating surface temperatures. An area's climate is determined not only by latitude, but also by factors such as altitude and proximity to the area and the ocean. Tropical cyclones, thunderstorms, heat waves and other severe weather occur in vast areas, which have a great impact on people's lives.
Earth's gravity interacts with other objects in space, especially the moon, which is Earth's only natural satellite. The earth takes about 365.25 days to make one revolution around the sun. The earth's axis of rotation is tilted relative to the plane of its orbit, creating seasons on earth. Gravitational interactions between earth and the moon cause tides that stabilize earth's orientation on its axis and gradually slow its rotation. The earth is the common home of mankind. There is only one earth for mankind.