Eating a diet high in protein for an extended period of time would be hardest on which of the following organs?
the pancreas and gallbladder since they must produce the enzymes needed to break down the protein.
the liver and kidneys since they must remove and process excess nitrogen from the protein.
the stomach and small intestines since they must digest increased amounts of protein.
the large intestine and rectum since they must process and excrete increased amounts of protein waste.

a. possible errors

d. new questions

explanation:

predictions and planning happen before. a summery comes after. errors you get after investigation and new questions propose what you can look for in the future.

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.