Answer the question based on the following text.  Question:   A city will grow larger when the number of people who are there grows or shrinks?    Text:  More people also means more clearing of land for agriculture and development.
grows

Answer the question based on the following text.  Question:   When we add more cars to the road the pollution levels decrease or increase?    Text:  Greater use of oil and other fossil fuels causes more pollution.
increase

Answer the question based on the following text.  Question:   If we find something with a low pH value that is likely to be acidic or basic?    Text:  The higher the pH value is, the stronger the base.
acidic