A scientific theory may be revised overtime because it goes to the loop of science which what's the scientific theory to test several times each time a different product may be shown or every now and then a different product may be shown so therefore over time as it goes through the loop of science a scientific theory may change or be revised
Answer:
the last one, oceanic crust is more dense!
1) We must ration out the oils because we will be running out before 50 years & we must have new technology to replace the Fossil Fuels.
2) If we allow the World's resources to be used as fast as they are then at some point we will run right out of that resource forever.
3) There should be someone to take responsibility for the mining and usage of the World's resources before its too late and it should not be too long before we reach the point.
Answer:
At least three principle methods of desalination exist: thermal, electrical, and pressure. The oldest method, thermal distillation, has been around for thousands of years. In thermal distillation, the water is boiled and then the steam is collected, leaving the salt behind.
Explanation:
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