Question

why earth is capable for living?

Answer 1

Earth is capable for living due to its position in the solar system. It is present at the right place (3rd planet), and so the it doesn't remain very hot or very cold. Earth also has the blanket of air - the Atmosphere. Atmosphere has oxygen level of 21%, due to which organisms are able to live. Earth also has water, which is not found in any other planet (Mars is having symptoms of existence of water only recently).

Due to all these reasons, Earth is the most suitable planet to live in.