Answer:
Millions of years ago, the Appalachians were taller than the Himalayas! Millions of years of erosion, however, have taken their toll. ... The crust that is now the Appalachians began folding over 300 million years ago, when the North American and African continental plates collided.
Answer:
D)
Explanation:
This is a prime example of natural selection.
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-Fitz
Because they take place at an atomic level and are unable to be seen by the human eye
Answer:
Recombination is a process by which pieces of DNA are broken and recombined to produce new combinations of alleles. This recombination process creates genetic diversity at the level of genes that reflects differences in the DNA sequences of different organisms.
Answer:
The density will increase
Explanation:
As mentioned in the question, the lamp contains a colored, waxy fluid that can be observed moving in clumps through a clear liquid. The clump of colored fluid reaches to the top from the bottom of the lava lamp, this happens because the clump is heavier so it will absorb maximum amount of heat and using that heat it will expand. When things expand they become less dense and start to rise. So,initially its density will lower but when it will keep rising in such a way that when it reaches top, it becomes more dense and heavy since it has cooled down till that time.
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