When caused by humans, acid rain is most commonly a byproduct of intense air pollution. As pollutants are pumped into the atmosphere, the particles rise up to the point where water can condense around them thereby forming water vapor and rain drops; however, those rain drops are closely intertwined with the pollutants thereby giving them an acidic nature.
Answer:
three.
Explanation:
Types of Galaxies
Astronomers classify galaxies into three major categories: elliptical, spiral and irregular.
The planets orbit the sun along the ecliptic plane
D.) siroccos (dry dusty wind)
Answer:
Natural vs synthetic materials
"Natural" products are made from natural resources, like wood and sand. "Synthetic" products are also made from natural resources. For example, the synthetic material plastic is made from petroleum, which is pumped out of the earth
