What are the 3 main layers of the earth and what do they consist of

1 answer:

7 0

The 3 main layers are the crust, the mantle, and the core. The crust consists of everything you see- dirt, rock, minerals, and everything you can see. We live on the crust, and it floats around on the magma in pieces we call continents. The next layer is the mantle, which is where all the magma is- this is what the crust floats on. It consists of molten rock and minerals; the bottom layer of the crust is continually melting under the extreme heat, but it is replaced when volcanoes spew the magma back onto the surface. The last layer is the core, an extremely fast-spinning ball of heavy metals. It is split into two layers; inner and outer core. The outer core is mostly an alloy of nickel and iron with some other heavy metals thrown in, like platinum and gold, but the inner core is almost solid iron. It is so hot that it should be melted, but the pressure of everything on top of it makes it so it has nowhere to melt to, keeping it solid.
Hope this helps!!! ^_^

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Answer:

Answered below

Explanation:

Environmental racism has to do with environmental population of neighborhoods populated by ethnic minority groups and races. Such population include; air pollution, garbage dumps, toxic waste facilities and hazards. An example of environmental racism is the asbestos in used housing and schools located in African American communities.

1) The American culture contributes to environmental racism because of their history with racism and slavery. The environmental policies were made to the disadvantage of minority groups.

2) Food scarcity is still very much a problem and a huge concern especially in poorer countries in Asia, South America and Africa. Increased population in these areas is a concern.

3) A higher population is a burden to resources available to us and therefore people should be concerned. The environment suffers as a result. The rate of pollution increases as human activities cause the destruction of natural protective mechanisms. Such activities include; industrial pollution, deforestation etc

4) Overpopulated countries should control their population growth. Methods such as birth control mechanisms and education would go a long way in helping this. Limiting the growth of an already overpopulated country is beneficial to humans and the environment.

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Denise is working on a project for her psychology class and has decided to replicate, on a small scale, Elton Mayo's work. If he

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Answer: B. False.

Explanation:

Elton Mayo was an Australian psychologist and sociologist who studied social interaction and developed the theory of organizations. He also developed the Hawthorne effect.

The Hawthorne Effect determines that subjects who know they are taking part in an experiment change their behavior as a consequence of participating in the experiment.

Therefore, if Denise replicates Elton Mayon's experiment, the production results will not be affected after implementing the experimental changes due to the Hawthorne Effect.

<em>I hope this information can help you.</em>

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