The most concentrated source of stored energy is a molecule of "GLUCOSE"
Answer The first practical realisation of the metric system came in 1799, during the French Revolution, when the existing system of measures
Explanation:
Answer:
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Answer:
C.
Explanation:
Hydrogen's pure form is gas at room temperature. Helium is expensive. Hydrogen is lighter than helium.
Answer:
walk or bike reduces CO2
using computers helps save forests
treating sewage water conserves freshwater aquifers
Explanation:
walking reduces CO2 by not using a car train or bus that puts out CO2
computers for note taking saves forests by reducing the amount of paper we use, therefore cutting down less trees to make the paper
treating sewage water and reusing it in factories conserves freshwater aquifers because we're recycling used water rather than continuing to use more and more freshwater.
