11. volcano
12. plate tectonics?
13. geology
14. ocean
15. earthquake
hope this helps
Wind, different air pressure.
Prehistory.
Because people did not have any form of writing or written language nothing in that time could be recorded or documented.
The most important measure of the choices is (c)volume of the discharge
The correct answer is - drought/dry season.
This can be taken in two ways;
- A long period with little to no rain, that is not typical for the climate type of the particular place;
In this case, we are talking about a drought, when there is a period of little to no rain, that is not usually appearing at that place, but instead changed the typical climate pattern.
- A long period with little to no rain, that is typical for the climate type of the particular place;
In this case, we are talking about a dry season, and this appears at places where there's climate types where there's wet season and dry season. In this places this is a typical, expected occurrence because it is in the right order with the climate pattern of the place.
