Fog is a cloud that has
a. a small vertical extent.
b. no ability to produce rain.
c. particles made of ice crystals.
d. its base at or near the ground.

In a scientific experiment, a is any factor that can be changed or be changed

One reason that madrid became the capital of spain is because of its

Many countries in africa have had difficulty creating democratic governments following their independence. all of the following issues have most likely contributed to this problem, except