An elevator exerts a force of 8000 N to lift passengers 15 m .how much work is the elevator doing ?

Astudent drew the following flowchart to show the movement of nutrients. soil → roots → plants →? where does nitrogen go next? a. directly into nearby animals as nutrition b. directly into aquifers through condensation c. directly into the air through evaporation d. directly into nearby plants during fixation

Which best describes a rhinovirus? o a. a virus that causes a common cold o b. a protective shell around a virus o c. a tube the comes off a virus o d. a piece of dna transferred by a virus

The breakdown of food is accomplished by enzymes. a. physical b. chemical c. mechanical d. none of the above