Some isotopes, however, decay slowly, and several of these are used as geologic clocks. Dating rocks by these radioactive timekeepers is simple in theory, but the laboratory procedures are complex. <span>All methods rely on the fact that certain elements (particularly uranium and potassium) contain a number of different isotopes whose half-life is exactly known and therefore the relative concentrations of these isotopes within a rock or mineral can measure the age.</span>
Answer:
All living cells release energy from food molecules through cellular respiration and/or fermentation. Some cells make food molecules using light energy through the process of photosynthesis.
Two ways to cells get energy: cellular respiration and fermentation.
Fermentation: Fermentation, chemical process by which molecules such as glucose are broken down anaerobically.
Cellular respiration: Cellular respiration is the process through which cells convert sugars into energy. To create ATP and other forms of energy to power cellular reactions, cells require fuel and an electron acceptor which drives the chemical process of turning energy into a useable form.
<h3><em>Hope this helps, I tried to make it as simple as possible because I know how confusing these things can get!! Have a nice day :) -KindnessMatters-</em></h3>
Your answer is c<span>erebellum; cerebral cortex.</span>
I can't be completely accurate without the texts, but based on my own knowledge I would have to say:
Explanation:
Yes, I think communities should use these green energies because not only does it keep the atmosphere safer and cleaner, it could help tremendously in the case that we run out of fossil fuels before we can find an alternative. Yes there are environmental risks, such as birds dying from wind turbines, but the lack of electricity might be more severe.
