“The cold war was not just a struggle between the United States and the Soviet Union-
it involved the entire world.” Do you agree with the
statement? Why or why not?

a. poison gas was sprayed over battlefields by airplanes to weaken enemy positions before major attacks.

the lines on a surface map are called isobars. isobars are lines of constant pressure which are measured in units called millibars. the numbers indicate the amount of air pressure, in millibars, that each line represents.