The darkening of a planet, moon, or other object in space by the shadow of another object in space is called a(n) a. solar wind b. corona c. eclipse d. lunar orbit

( i think it's c. or d. but i don't know)

how to make a simple air condition

a:

by the combination of an unlimited number of elements

under a microscope, cancer cells may look very different from normal cells. they often have different sizes and some may be larger than normal while others are smaller. cancer cells are often abnormally shaped and the control centre of the cell (the nucleus) may have an abnormal appearance.

i think? ?