Answer the questions about our planet.

Choose the correct option.

How old is our planet? [About four point five billion years old|About forty-six thousand years old|About fourteen point four million years old]

How large is its surface? [About five hundred thousand square kilometres|About five hundred million square kilometres|About five million six hundred thousand square kilometres]

How far is it from the Sun? [About one hundred fifty million kilometres|About one hundred fifty thousand kilometres|About one hundred billion kilometres]

How many continents are there? [Four|Five|Six]