In the image shown below, which of the following options was used to obtain the format of the title? The Earth Our home planet has been compared to a blue marble by those who have seen it from space. The question of why there is water, and thus life, on Earth remains unanswered. Why has our planet, alone in the solar system, accumulated enough water to create entire oceans? One day, when we are able to venture farther afield, we may find other inhabited planets, with water and life aplenty