It's a process called subduction; oceanic crust tends to get colder and denser with age as it spreads off the mid-ocean ridges. It gets so dense, that it sinks in the upper mantle (subduction). This is like a giant recycling system for the oceanic lithosphere.
Answer:
May include opinions that are not completely factual
Explanation:
A secondary source is one that did not witness the event first hand but gives information about a primary source.
Explanation:
Developing nations have a higher level of industrial fog than developed nations. This is because the nations are developing rapidly and at higher rates than the developed nation, Therefore they consume a lot of energy to spur this economic development. However, due to their need for cheap energy to power this rapid industrial development, they opt for cheap nonrenewable sources of energy like coal which are the highest populations. This is why cities in countries like India and China have the highest levels of smog.
Most developed nations, on the other hand, are shifting towards renewable energy sources –even though they are currently more expensive than non-renewable energy- because they have the resources.
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For more on renewable and non-renewable sources of energy check out;
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Answer:
The greenhouse effect is a result of absorption and radiation of energy in the atmosphere.
Explanation:
You could either say language diffusion or more commonly answered is cultural diffusion