with a “Big Bang” that threw matter in all directions. After that, atoms began to form and combine to create stars and other bodies.
Main idea of Para. 1
water
atmosphere
For several billion years after the “Big Bang”, the earth was still just a cloud of dust. What it was to become was uncertain until
between 4.5 and 3.8 billion years ago when the
A widely accepted theory about the formation of the universe
Main idea of Para. 2
the g a cloud of dust a solid globe
the earth
water began to appear on its surface.
dust settled into a solid globe.
The earth became so violent that it was not
clear whether the shape would last or not. It
exploded loudly with fire and rock. They were
in time to produce carbon, nitrogen, water vapor and other gases, which were to make the earth’s atmosphere. What is even more important is that as the earth cooled down,