Large amounts of water exist throughout the Solar System, but the Earth’s oceans are the only planet known to harbor life. The Earth’s oceans cover about 71% of the planet’s surface, dwarfing Earth’s lakes and rivers. While the Solar System contains many other bodies of water, Earth is the only planetary body that has liquid surface water. There are numerous types of life on Earth, but no other planet has as much.
The Earth’s crust is made of relatively light elements and is extremely thin. The material used to make the crust is mainly silica, aluminum, and oxygen, all of which are light and can be found naturally in the atmosphere. The Earth’s crust is as thick as five kilometers beneath the oceans, but is typically between 18 and 70 km thick. It is this thickness that allows plants and animals to grow and survive. The different types of life on Earth are dependent on this water source for nutrients.
The Earth’s axis is not entirely straight with respect to the Sun. The planet’s north pole is tilted toward the Sun half of the year, and the south pole is tilted away from the Sun half the year. This means that the northern half of the planet gets more sunlight than the southern. The northern half of the planet receives less sunlight than the southern part. The tilt of the earth makes the planet more habitable and therefore, more hospitable for life.
From a distant planet, the Earth would appear bright and blue. The largest telescopes, such as Hubble, can observe this feature in great detail. This is one of the reasons why the Earth is so aesthetically pleasing to the eye. When you look at the world through a telescope, you’ll see swirling white cloud patterns. These features are the most visible in space and make Earth seem so majestic. However, you’ll be hard-pressed to find green landscapes in space.
The earth is made up of several distinct layers. Its mantle, crust, and oceans are all formed by the collision of two separate continents. The outer layer of the Earth is made up of solid rock and fluid, which is the main component of the Earth. The mantle is the solid, which is a fluid. It is the largest of these three. A thick layer of water is the key to life on Earth. And it is a planet that is home to a vast array of life.
The planet’s mantle is the deepest layer. It is 3,000 kilometers thick and resembles the moon. It is also the hottest. This layer contains gases like nitrogen, oxygen, and sulfur. This layer is hotter than the layers below. Its temperature rises above the surface and melts rock, which forms the planet’s crust. It’s this layered structure that allows the earth’s tectonic plates to slide across it.