Answer:
D is the answer
Explanation:
Hydraulic facturing, aka fracking, uses toxic chemicals above some regulations which may lead to a leak into water supplies and therefore contaminate it.
It has not much to do with coal, more to do with oil and natural gases
Because of fracking now making it accessible to reach sources in vast number that were previously unacessible, it leads to decreases in gas prices
Hope this helps :)
Basically you can answer the question if you know the meaning of 32P and of 35S.
32P means Phosporus-32 (32 is the mass) and 35S means the Sulfur isotope with mass of 35 (it's the most radioactive of all the sulfur isotopes btw).
So we can see that the names have to do with Sulfur and Phosphorus - therefore, the best answer is the following one:
<span>C. Because DNA contains phosphorus and proteins contain sulfur</span>
Answer:
Point counts and line-transect distance sampling methods are appropriate method to monitor a population of swallows and tortoises respectively.
Explanation:
Answer:
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Explanation:
Dorothy Mary Crowfoot Hodgkin was the first to develop protein crystallography and she won Nobel Prize for that discovery ( third woman to win the Nobel Prize in Chemistry). Hodgkin confirmed the structure of penicillin but also realized the structure of vitamin B12 by x-ray crystallography analysis. She advanced the classical technique of X-ray crystallography.
