Explanation:
group b. is called the control group. it is important to compare the 2 groups for any similarities. this determines if the medications in group a are working like intended. to keep track of side effects w/group a..
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
Answer:
B
Explanation:
Rabbits are herbivore, so they can live better and obtain more food there
B. lack vascular tissue. Mosses need to absorb water directly from the soil close to the ground because they don't have stems, roots, and leaves that plants use to absorb water .