According to the dictionary it means "a prolonged period of abnormally low rainfall, leading to a shortage of water."
Basically it's when there is very little rain or water and the amount of water in a place decreases.
The correct answer is letter D
A Turning Point is a particular time or incident that marks the beginning of a completely new stage in someone's life or in the development of something.
This turning point is always used to refer to major historical changes, such as the end of certain eras for the beginning of a new era, such as the middle and modern ages, in this turning point there were major changes in society.
The three weaknesses that allowed European powers to control or colonize non-European regions are the following:
A. They did not have the most advanced military equipment.
B. They were small nations with small populations.
D. They were resigned to the fate of being ruled by foreigners.