Lesson 1.3

Question 1

This means that water was released through volcanic eruptions. When volcanoes erupted, they let out steam and gases, which eventually turned into water.

Answer 1

Volcanism

Question 2

the outer parts of the solar system. These meteors, which are like big chunks of ice, crashed into Earth and brought water with them.

Answer 2

Icy Meteors

Question 3

HEAT COMING FROM EARTH IS CAUSED BY

Answer 3

RADIOGENIC HEAT