Use your completed student guide for this lesson to answer the following question. what caused prehistoric people to drastically change the way they lived?
a. climate change
b. fire
c. rivers
d. all of the above

Air masses are characterized by various properties including temperature humidity air pressure and wind speed. which of the following air masses is associated with low relative humidity and high air temperature ?

Match the graph type to its description. 1. uses symbols to describe information pie 2. compares different quantities at the same point in time line 3. compares increases and decreases in a quantity over a period of time bar 4. shows the relationship of parts to each other and to the whole pictograph

Residents of moldova are mainly a. russian b. ukrainian c. serbian d. romanian the answer is d. romanian