Scientists are able to date how old the fossil is. They also can see odd immigration patterns, which is how they came about things like Pangea.
Tornadoes form when warm, humid air collides with cold, dry air. The denser cold air is pushed over the warm air, usually producing thunderstorms. The warm air rises through the colder air, causing an updraft. The updraft will begin to rotate if winds vary sharply in speed or direction1
Answer A
I believe the correct answer is choice A because wealthy people are known to live in the centers of cities or attractive places.
Answer:
The increase in drought is caused by many factors: shortfalls in precipitation; earlier snow melt; a shift away from light and moderate rains towards short, heavy precipitation events; and increased evaporation from soil and vegetation due to higher atmospheric temperatures, all of which have been driven at least in part by climate changes.
The most populated region of Australia is the southeastern coast because drops grow much better there and the vast majority of Australia is desert.
