In general, air masses along the southern u. s. tend to be made up of high-pressure air. air closer to the north pole tends to be low pressure air. why does the high pressure air from the south not blow straight to the north?
a. because the earth's rotation twists the wind's path to the west.
b. because the earth's surface is heated evenly, canceling out any pressure differences.
c. because winds blow from areas of low pressure to areas of high pressure.
d. because the earth's rotation twists the wind's path to the east.

When water freezes, it . contracts expands

Two students are working together on an experiment that measures the effect of different liquid fertilizers on the thickness of plants’ stems. which is most likely to result in the greatest amount of error in their scientific experiment? a.one student measures the plant stem widths by using calipers. the other student measures the widths of the same plant stems again by using a different pair of calipers. b.one student measures the plant stem widths by using calipers. the other student types the measurements as they are taken into a computer spreadsheet. c.one student weighs liquids for the experiment by using a calibrated scale. the other student weighs liquids for the experiment by using a different calibrated scale.

Compare the parts of a cell and the cell as a whole to another common nonliving system (i.e., a car, a city, describe the parts of a cell and their primary function.