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stiv31 [10]
2 years ago
12

What does David Smith mean by a “world city (aka Global Cities)” What role do they play in the global system?

Geography
1 answer:
Free_Kalibri [48]2 years ago
8 0

Answer: I not really sure. ;D

Explanation: Try google

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The worldwide use of cleaner energy sources could result in what?Which one is it?a rise in ocean levelsa reduction in acid rain
sammy [17]


The best answer is reduction in acid rain.

Acid rain is rainfall which has been rendered acidic by pollutants  in the atmosphere.  This kind of rain is typically harmful to  forests and lakes.

The main cause of acid rain is human activities. The burning of fossil fuels such coal in electrical generating plants and crude oil products such as gasoline and diesel in car engine  releases  sulphur dioxide and nitrogen oxide into the atmosphere.

These compounds mix with water very high up in the atmosphere and form acid pollutants which  fall on the ground as acid rain.

 Use of clean energy will eliminate burning of fossil fuels and thus no acid rain will be produced.


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This resource is a source of regional conflict due to its short supply.
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Water because they might have a competition over it
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2 years ago
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What caused many Arabs to move through the Middle East in the 600s CE?
elena-14-01-66 [18.8K]
Religion caused many Arabs to move through the Middle East.

During the 600s CE, an Arab expansion took place all over the Middle East. During these years, Muslim conquests became common, and this led to the establishment of unified Arabic empires, or "caliphates."
4 0
3 years ago
The theory of plate tectonics implies that Earth’s crust is composed of many lithospheric plates that are in gradual, but contin
dolphi86 [110]

The statement underlying mantle layer is molten where convection currents cause the movement of the lithospheric plates explains the movement of these lithospheric plates.

<h3>What is tectonic plate movement? </h3>

The theory discusses how Earth's surface is composed out of rigid slabs of <em>rock</em> that are known as plates. These <u>large pieces </u>of plates under the Earth's surface are regarded as the lithosphere.

Therefore, convection currents that appear in the mantle lead to movements in the plates due to the flow of current to heat up the mantle.

Learn more about tectonic plates here:

brainly.com/question/26826345

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2 years ago
Southwest asia, southeast asia, east asia, mesoamerica, and sub-saharan african regions were all
geniusboy [140]

Answer:

Areas noted for widespread terracing

Explanation:

I hope this helps

Have an AMAZING day :)

-Emma

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