A cloud collapses to form a star and disk. Planets form from this disk. According to our current understanding, a star and its planets form out of a collapsing cloud of dust and gas within a larger cloud called a nebula.
The Earth is thought to have been formed about 4.6 billion years ago by collisions in the giant disc-shaped cloud of material that also formed the Sun. Gravity slowly gathered this gas and dust together into clumps that became asteroids and small early planets called planetesimals.
It was hard to grow crops and to keep food
The answer is B: west to east
Weather can move in any direction. In the United States, weather most often moves west to east, because that is the direction the jet stream blows. The jet stream carries weather systems along with it.
Now, you may ask, why does the jet stream blow west to east?
The answer is complicated, but it happens as a result of the way the sun heats the equator more than the poles, and the speed with which the earth spins.
Hope this helps
Answer:
beacause the mayor i guess
Explanation:
A population pyramid tells us how many dependants there are. There are two groups of dependants, young dependants (aged below 15) and elderly.
