Table of Contents
How does Earth compare to other planets?
Earth is a little more than 12,000 kilometers in diameter. It differs from the other planets because it has liquid water on its surface, maintains life, and has active plate movement. It rotates on its axis every 24 hours (a day) and revolves around the Sun every 365 days (a year). The Earth has one moon.
Why is Earth a special plant?
Earth is an unique planet beacuse in whole solar system our earth has large amount of liquid water and many types of gas present. Our earth is a blue planet beacuse in our earth the abundance of water is present. Earth is the only known astronomical object to have bodies of liquid water on its surface.
What is the gravity on other planets compared to Earth?
If it is an icy or watery planet, its radius might be as large as twice the Earth’s, in which case its surface gravity might be no more than 1.25 times as strong as the Earth’s….Relationship of surface gravity to mass and radius.
| Name | Surface gravity |
|---|---|
| Sun | 28.02 g |
| Mercury | 0.377 g |
| Venus | 0.905 g |
| Earth | 1 g (midlatitudes) |
How do the planets in the solar system differ from each other?
The inner planets are closer to the Sun and are smaller and rockier. The outer planets are further away, larger and made up mostly of gas. The inner planets (in order of distance from the sun, closest to furthest) are Mercury, Venus, Earth and Mars.
How did plants change Earth?
Examples include how photosynthetic life altered the atmosphere through the production of oxygen, which in turn increased weathering rates and allowed for the evolution of animal life; and how microbial life on land increased the formation of soil, which in turn allowed for the evolution of land plants.
How are plants formed on Earth?
Land plants evolved from ocean plants. That is, from algae. Plants are thought to have made the leap from the oceans onto dry land about 450 million years ago. Both types of spores were shed from the plant.
How strong is the gravity on Earth?
9.807 m/s²
Earth/Gravity