Earth HABITABLE.pptx

4 PICS 1 WORD EARTH AND EARTH SYSTEMS  Venus, Earth, and Mars are part of the inner terrestrial or "rocky" planets. Their composition and densities are not too different from each other.  Venus is considered to be the Earth's twin planet. It has a very similar size and mass with the Eart...

4 PICS 1 WORD EARTH AND EARTH SYSTEMS  Venus, Earth, and Mars are part of the inner terrestrial or "rocky" planets. Their composition and densities are not too different from each other.  Venus is considered to be the Earth's twin planet. It has a very similar size and mass with the Earth.  Mars is about half the Earth's size.  Orbital period and velocity are related to the planet's distance from the sun. Among the three planet, Venus is the nearest and Mars is the farthest from the Sun.  Rotational speed of Earth and Mars are very similar. Rotational speed of Venus is extremely slow.  Abundance of liquid water on Earth, hence the blue color. The Earth is a habitable planet.  0 What Makes 2 a World Habitable?