The correct options are
A Geoid means an Earth-like shape.
B Earth is the only planet that contains life.
D About two-thirds of the Earth is water.
The Earth is the third nearest planet to the Sun. Conditions favourable to support life are probably found only on the Earth. The Earth is neither too hot nor too cold. It has water and air, which are essential for our survival. From outer space, the Earth appears blue because two-thirds of its surface is covered with water.