Hazard or prevention
Put up septic tanks for the proper disposal of animal waste.

In this case, the statement that people who exercise for an hour may have lower cholesterol levels is .

How does buring fossil fuels impact does carbon cycle? what large impact does this have on the envirnment?

Ascientist is conducting an investigation that involves water, silver, carbon dioxide, and oxygen gas which group of statements best describes all of the materials he is using in the investigation?