The most widely accepted theory of planetary formation, known as the nebular hypothesis, maintains that 4.6 billion years ago, the Solar System formed from the gravitational collapse of a giant molecular cloud which was light years across.
Answer:
cells are the smallest unit of life
A geologist studies the earth's history.
Fiat money represents a declaration that the money comes
from a good institution. It is establish
by an order from the government. If that
government is legitimate and prosperous then its values is high. If the government is corrupt or suffering
economic and financial decline then its value goes down.