2. Look at how different the grandchild looks like from its grandparents. Why do children look different from their parents? (In your answer, be sure to explain in detail how traits are passed on to a person's
offspring) Hint: Use the words chromosome, allele, gene, trait, dominant, and recessive.

carbohydrates are the body's preferred source of energy.

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.