The sender is.....Nucleotides. DNA is made of chemical building blocks called nucleotides.
B) It's known as a Fault. That's why they say "Don't drill on a fault line," because when fault lines move they cause earthquakes, and other occurrences.
An increase in human population negatively impacts the water resources. There is only a small amount of clean and drinkable water on Earth. If more people are on Earth, more of this water will be used by the population. An increase of people also means that more fossil fuel will be used.
<h3>How does human population impact water resources?</h3>
Population growth especially will limit the amount of water available per person, because an increase in per capita water consumption driven by development will intensify water demand, straining the local water supply.
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Large crystals indicate that it cooled very quickly. If it cooled slowly, it would have time to settle down and make a nice smooth rock.
