Answer:
internal migration: moving within a state, country, or continent.
external migration: moving to a different state, country, or continent.
Explanation:
A probe is a spacecraft that travels through space to collect science information. Probes send data back to Earth for scientists to study. Mercury, Venus, Mars, Jupiter, Moons of Mars, and Moons of Saturn.
The Basin System of Irrigation was d<span>eveloped thousands of years ago.
It is now used only in parts of southern Egypt and northern Sudan. It only supports one main crop because it is dependent on the annual flooding of the Nile.
TRUE :)</span>