Select the statements that correctly describe how a barometer measures pressure. a. Pressure exerted by the atmosphere is equal to pressure exerted by the column of mercury.
b. The pressure exerted by an enclosed gas is equal to the height difference of a column of mercury in a U-tube.
c. A column of mercury inverted in a dish of mercury measures pressure exerted on the open surface of the mercury.
d. The diaphragm changes shape in response to exerted pressure.

After cloud droplets form, what must happen to them for precipitation to occur?

The human activities in two locations are described below: location a: rampant use of plastic containers location b: excessive use of pesticides and fertilizers which statement is most likely true? location a will have poor air quality because plastic is biodegradable. location a will experience water scarcity because plastic absorbs moisture. the population of honeybees will increase in location b because production of crops will increase. the population of fish in location b will decrease because the water is contaminated.

A2.5% (by mass) solution concentration signifies that there is a 2.5 % (by mass) solution concentration signifies that there is blank of solute in every 100 g of solution. of solute in every 100 g of solution