GENERAL KNOWLEDGE

GK

THE UNIVERSE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
We can live on Earth because, UNLIKE the other planets Earth ____
A
has enough liquid water to support life as we know it today.
B
has lots of carbon dioxide for us to breathe
C
has a rocky surface
D
has temperatures that can fall to 100 degrees below zero in the winter.
Explanation: 

Detailed explanation-1: -It is the right distance from the Sun, it is protected from harmful solar radiation by its magnetic field, it is kept warm by an insulating atmosphere, and it has the right chemical ingredients for life, including water and carbon.

Detailed explanation-2: -Liquid water, which is necessary for life as we know it, continues to exist on the surface of Earth because the planet is at a distance, known as the habitable zone, far enough from the Sun that it does not lose its water, but not so far that low temperatures cause all water on the planet to freeze.

Detailed explanation-3: -Water is the liquid that makes life on Earth possible. As water cycles from the air to the land to the sea and back again, water shapes our planet-and nearly every aspect of our lives. All living things, from tiny cyanobacteria to giant blue whales, need water to survive.

There is 1 question to complete.