Afactor that can vary among people taking part in an experimental study is known as a a. sample. b. survey. c. variable. d. theory.

The is a thin membrane that transmits sound waves into the middle ear.

Sometimes without even knowing it, people waste fresh water. write an editorial for our school newspaper. try to convince your readers that saving and recycling water should be something they do every day.

True or false drinking alcohol at a faster rate will not affect a body’s absorption of alcohol