Describe signs of a healthy animal

Appearance and behavior: Healthy animals exhibit normal posture. They are alert, having clear eyes and respond well to a touch. Any abnormal running nose and dull eyes may indicate ill health.

Movement: Any animal that cannot walk or stand properly must be closely watched since something might be wrong with it. When you notice that the animal is walking and favoring on the leg, it would be advisable to you restrain that animal and find out what is causing it to do so.

sulfur dioxide

explanation: 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.

the answer

b.) bowling ball