Homo ergaster may have been the first human species to leave Africa and fossil remains show this species had expanded its range into southern Eurasia by 1.75 million years ago. Their descendents, Homo erectus, then spread eastward and were established in South East Asia by at least 1.6 million years ago.Oct 30, 2015
Answer:
A prolonged drought with very high temperatures can affect the water levels of the water table underground.
Explanation:
The water that is located underground is generally safer when it comes to climate or weather conditions, at least in the shorter run. They are not immune though, as even though they are underground, they are not very deep, and also their levels depend on the outside conditions. Several climate or weather conditions can have an effect on the water table of the underground water, but the one that sticks out the most is a prolonged drought with high temperatures.
A prolonged period of drought will mean that there will be no precipitation for a long period of time. Without precipitation, there will be no new water coming in the undergroung water table. On the other hand, high temperatures will result in intense heating up of the ground, and some of the heat will be reaching the water table underground, so the evaporation will increase. With no water coming in and increased evaporation, the levels of water will drop.
<span>The correct answer to this question is B - the two key questions in geography are intended to obtain certain factual information. Whilst the other possible questions given as answers for this question, such as 'why are they going' give indefinite, opinion-based answers, only answer B. Which birds are migrating would give a definite answer.</span>
An island is a land surrounded by a body of water. For example, Hawaii is an island because it is surrounded by the Pacific Ocean.
