Uranium extraction from seawater: Uranium is most often mined from the Earth's crust, but it can also be extracted from seawater, which contains large quantities of uranium<span> (3.3 ppb, or 4.6 trillion kg). Theoretically, that amount would last for 5,700 years using conventional reactors to supply 15 TW of power.</span>
A.
Let's break it down:
-If the study has been conducted by multiple others and they get different results, it might be a sign that something went wrong in the experiment, and the data is unreliable. For example, if everybody else timed an event and got the same exact time except for the fact that you got a different time, you may start to suspect that you had done something wrong and the data was unusable.
<em>Hope this helped! :)</em>
UV light caused cancer because it damages the DNA in our cells. Changing the characteristic of a cell can cause cancer
Scientific theory is what the scientist thinks is correct, but still has room for correction, while a scientific law is proven by experiments over and over again to deem it's correct.