Answer:
Mechanized agricultural methods have improved agricultural productivity.
Participation in the global economy has increased urbanization
Settlement areas have increased due to improved water storage and delivery systems
Explanation:
Answer:
Geostrophic wind D) flows parallel to contour lines of upper-air pressure .
Explanation:
Geostrophic wind -
Air parcel generally moves from higher pressure to lower pressure due to pressure gradient force and left or right deflection due to coriolis force. When this deflection takes place a time comes when pressure gradient force and coriolis force becomes equal and the air parcel moves parallel to isobar then the winds are called geostrophic winds .
All of the following are reasons why many rivers are unnavigable in Africa except the Nile is too shallow. The correct option among all the options that are given in the question is the third option or option "C". The Nile is not a shallow river but a huge river and so it is hard to cross. I hope the answer helps you.
Answer:
True
Explanation:
The primary reason magma forms at subduction zones is that the subducting plate carries a cover of sediments, water, and hydrated minerals down with it, which lowers the temperature required for the adjacent overlying mantle lithospheric rock to melt.True
Subduction is a geological process that takes place at convergent boundaries of tectonic plates,this zones are the second most important environment on Earth for volcanic eruptions
Magma is produced in the subduction zone as a result of the subducting plate carrying a cover of sediments, water, and hydrated minerals down with it, which lowers the temperature required for the adjacent overlying mantle lithospheric rock to melt. Due to the heat caused by it rubbing against the other plate as well as the natural heat of the mantle in the earth crust, the plate melts and turns into magma, also the melting of peridotite in the presence of water results in the generation of magma,this addition of fluids lowers the melting point of the mantle.
magmas in subduction zone volcanoes are often explosive, because they arrive at the surface as very sticky and gas rich
Answer:
Oregon, Washington, and California
Explanation:
