History of Water

Q. One theory suggests that water was brought to Earth by ____.

1. Gravity
2. Intense sunlight
3. Meteor Shower
4. Magnetic poles

Q. Which among the following statements is a sign that a volcanic eruption is going to take place from a volcano?

1. Occurence of a rainbow.
2. Ash coming out followed by darkness.
3. A bright sunny day.
4. Increase in water level of the sea.

Q. What does the second theory about the origin of water suggest?

1. Intense sunlight
2. Solar flares
3. Volcanic eruptions
4. None of the Above

Q. The process where liquid water heats up and turns into gaseous water vapour is called .

1. condensation
2. precipitation
3. evaporation
4. hydration

Q. The meteor strike is one of the possible explanations for the presence of water on Earth.

1. False
2. True