An extended period of well below average rainfall known as a

An extended period of well below average rainfall known as a drought. If this keep happening, a drought will eventually cause massive shortages in water supply. Massive shortages in water supply will eventually cause in a decrease of population of various plants and animals

343^x = 49^4-xx = 4-xx+x=42x = 4x = 4/2x = 2therefore x = 2