Atotal solar eclipse is visible from
a. all over earth.
b. only within the moon’s umbra.
c. only within the moon’s penumbra.
d. only the dark side of earth.

According to the united nations refugee agency, more than 2/3 of the world's refugees come from just five countries. which country is not on that list? a) turkey b) myanmar c) afghanistan d) south sudan

The 5th term in a series of even number that begin 3x

Write a short paragraph of about 150-300 words. explain how the physical environment can limit human activities.