Answer:
Computer systems consist of three components as shown in below image: Central Processing Unit, Input devices and Output devices. Input devices provide data input to processor, which processes data and generates useful information that's displayed to the user through output devices. This is stored in computer's memory.
They learned the earth was much older than they had previously thought.
Gradual processes changed the earth's surface.
Fossils could tell the age they came from.
The order of precedence is the hierarchical order in which calculations are conducted. The simplest example of this is the way you always multiply before you add numbers.
Answer:
in think gray is used as arrow color which selects the points in a vector