That would be the theory of, "plate tectonics"
Corporations are often accused of despoiling the environment in their quest for profit. Free enterprise is supposedly incompatible with environmental preservation so that government regulation is required.
Such thinking is the basis for current proposals to expand environmental regulation greatly. So many new controls have been proposed and enacted that the late economic journalist Warren Brookes once forecast that the U.S. Environmental Protection Agency (EPA) could well become "the most powerful government agency on earth, involved in massive levels of economic, social, scientific, and political spending and interference.
But if the profit motive is the primary cause of pollution, one would not expect to find much pollution in socialist countries, such as the former Soviet Union, China, and in the former Communist countries of Eastern and Central Europe. That is, in theory. In reality, exactly the opposite is true: The socialist world suffers from the worst pollution on earth. Could it be that free enterprise is not so incompatible with environmental protection after all?
The two major vegetation zones in both ancient Egypt and the Middle East are Desert and Desert Scrub.
Answer:
Yes, there has been a nuclear fallout.
Answer:
When you find the Earth's chemical structure, you can split the interior into <em>three layers: the crust, the mantle, and the core.</em>
- The crust is perhaps the lowest volume layer made up of several minerals formed from silicate.
- The mantle underneath the crust is the biggest layer which consists of more porous iron and silicate rock with magnesium.
- The core with high density is primarily metal (predominantly iron and nickel).
Through comparison, despite the Earth's physical features, how much the layers react to temperature and pressure, the Earth consists of five layers: <em>the lithosphere, the asthenosphere, the mesosphere, the outer center, and the inner centre.</em>
- The lithosphere is indeed the outermost layer of brittle rock which breaks when applying pressure.
- The asthenosphere is a porous layer; if a steady pressure is applied it flows.
- The mesosphere is below the asthenosphere (corresponding to the middle and lower mantle) and is solid because of the enhanced thickness tension.
- Underneath the mesosphere the outer core is liquid (capable of flowing), as well as the inner core is solid.
- The same as the mesosphere, as force is applied, the pressure on the inner core creates a hard layer which is unable to move.