Short essay on our planet Earth
Answers
EARTH
Earth is the only planet we know of in our solar system that humans can live on. No other planet has oceans, other life forms, and enough oxygen to comfortably breathe. Because we have so much water, Earth is called the Blue Planet. From space the oceans combined with the atmosphere makes the planet look blue.
The Earth was formed about 4.7 billion years ago. The Earth’s shape is very close to that of a sphere, not perfectly spherical. The Earth’s equatorial diameter is about 12,756 km, which is slightly larger than the polar diameter; about 12,714 km Surface Area of the Earth is 510,065,600 km² of which 148,939,100 km² (29.2 %) is land and 361,126,400 km2 (70.8 %) is water.
Earth is the fifth largest planet and the third planet from the Sun with only Mercury and Venus being closer. It's about 24,920 miles around Earth at the equator. That means it would take 33,000,000 people holding hands to reach all the way around. The land on Earth is made of several plates and at one time all of these plates were joined together, making it possible to walk from one side of the Earth to the other. Plates are individual pieces that are always moving so the land keeps drifting apart slowly. Today there are seven distinct land masses known as continents.
Earth is not only the planet that we live on, but also the only planet with adundance of the right amount of resources to sustain life.