12. Which sentence correctly characterizes the relationship between air pressure and wind movement?
a. Winds tend to flow from areas of low pressure to areas
of high pressure.
b. Winds tend to flow north from high-pressure systems.
C. Winds tend to flow from areas of high pressure to
areas of low pressure.
d. Winds tend to flow south from high-pressure systems.

b.

developed countries have tended to improve the environment, while developing countries have tended to damage it.

the precambrian aged rocks could be found in australia. australia is a region that has a lot of ancient civilization history from million years ago. in this region, there are a lot of recognizable fossils buried in its land which is considered a precambrian-aged rocks