Explanation:
white blood cells are the cells that do not have any shape
The meaning is, "the taking in of matter by a living cell by invagination of its membrane to form a vacuole."
Answer:
Acid rain is caused by a chemical reaction that begins when compounds like sulfur dioxide and nitrogen oxides are released into the air. These substances can rise very high into the atmosphere, where they mix and react with water, oxygen, and other chemicals to form more acidic pollutants, known as acid rain.
