why do you think the earth is home to human beings and other organisms?

 Earth is home to millions of species,, including humans. Earth's biosphere has significantly altered the atmosphere and other abiotic conditions on the planet, enabling the proliferation of aerobic organisms as well as the formation of the ozone layer which, together with Earth's magnetic field, blocks harmful solar radiation, permitting life on land.^] The physical properties of the Earth, as well as its geological history and orbit, have allowed life to persist during this period.