The correct answer would be D) An observation that has a number associated with it.
Answer:
the Hawaii scientific drilling project drilled over 3000 meters into the Mauna loa volcano and when the lava is cooled it turns into a solid rock.
Explanation:
Medications can be tested on cell cultures instead of being injected into patients unnecessarily.
Cancer cells continue to grow in the cultures uncontrollably allowing scientists to test multiple medications on the cancer cells.
This is true they are the products of photosynthesis and the reactants for aerobic respiration.
Answer:
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One of the amazing things about alternative energy resources is that they are renewable, unlike fossil fuels. The use of fossil fuels, such as coal and natural gasses, can contribute a lot to pollution since fossil fuels are usually processed through factories and plants. With water, wind, and solar energy, it is much easier to gain electricity with those methods rather than others, and much cheaper.
