The pool being cooler at the deep end. Also the air closer to the roof of a house being cooler.
A solution is usualy a diluted liquid that cleans for example bleach solution.
Answer:
Sliding friction
Explanation:
SLiding friction produces force
Answer:
Explanation:
When you are in the laboratory and take a direct sniff of the chemicals you are using, you run the risk of damaging your mucous membranes or your lungs. When it is necessary to smell chemicals in the lab, the proper technique is to cup your hand above the container and waft the air toward your face.
