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:
The process whereby countries in a geographical area cooperate with one another to reduce barriers to the international flow of products,people or capital is called as regional economic integration.
Explanation:
Regional economic integration is defined as an agreement between groups of counties in a geographical region that reduces barriers to the flow of goods,services,factors etc.
In 1952, this type of agreement was occur between European and 15 different European countries and the main purpose of this was to eliminate the barriers and create flow of goods between European countries which in turn creates new opportunities and provide regional free trade agreement.
The levels of integrations are Free trade,Customs Union, Common Market,Political Union etc.
Answer:
Atmospheric pressure differs in different parts of the world.
Explanation:
- This is because atmospheric pressure depends on the height of a particular location on earth.
- A number of locations on the earth are at sea level. The atmospheric pressure at sea level is 14.7 pounds per square inch.
- At higher levels (altitudes) the atmospheric pressure is lower since higher places have got less air pushing downwards compared to lower altitudes which have more air pushing down and hence, high atmospheric pressure.
