Inner Core.The Crust, oxygen, silicon, aluminum, iron, calcium, magnesium, potassium and sodium<span>. It is divided into huge plates that float on the mantle, which is in the next layer. its about 25 miles thick, and there is really not a average temp.
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The Mantle, is a silicate rocky shell about 1,802 miles thick.
Outer Core, <span>composed of mostly iron and nickel that lies above Earth's solid
inner </span><span>core its about 1400 miles thick. its temps are between 44000 F and 66000 F</span>
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Inner Core. temp is about 100000 F and 1250 km thick. is is highly compact rock and medles </span>
Answer:
desirable traits are passed down into future generations
Explanation:
It is also called a decision lol!
Answer:
True
Explanation:
Earlier it was believed by researchers that sleep is not a good thing as it does not allow an organism to stay alert all the time due to which there are high chances of such organism being consumed by other organism. However, with the discovery of theory of evolution, it is now believed that sleep has also evolved. Its evolution allows an organism to save energy and conserve it.
Evolved sleep has helped decrease synaptic strength which allows a person to preserve memories and function well during the day time. REM sleep in the early morning makes brain metabolically active even while sleeping and hence, dream comes.
