Answer:
Groundwater comes from rain and snow that seeps into the ground. ... Water is pumped, both from groundwater or surface water sources, into pipes or tanks. The pipes eventually lead to our homes, schools, businesses, and any place where you can turn on the tap and drink water. Most people in the U.S
Explanation:
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Answer: Crude Birth Rate and Crude Death Rate
Explanation: Both indicate the Natural Increase Rate of a country
Answer:
<u><em>Gravity </em></u>
Explanation:
Basically, the sun keeps all the planets in the orbital motion by gravitational alignment. Just as the earth and moon have a similar gravitational pull towards each other. Galileo gave the idea of Copernicus theory. The theory also follows the models of the geocentric model of Ptolemy. Stars are at a fixed position from the sun and far away from the sun. As compared to the earth which is nearby and rotates on its axis from right to left.
Pangea is the supercontinent Alfred Wagner proposed in his theory
High levels of dissolved oxygen
