Air pollution. Cleaner burning than other fossil fuels, the combustion of natural gas<span> produces negligible amounts of sulfur, mercury, and particulates. Burning</span>natural gas does<span> produce nitrogen oxides (NOx), which are precursors to smog, but at lower levels than gasoline and diesel used for motor vehicles.</span>
Reactants. Reactants are the substances that are needed for a chemical reaction to occur. Without reactants there are no products.
<span>The Lorax promised that if the truffula seeds were planted, then The Lorax and his friends would come back again. He also mentions that in addition to planting the seeds, you had to give it clean water and fresh air, grow a forest of the trees, and protect them from being chopped down as well.</span>
Elements pass from one organism to another and among parts of the biosphere through closed loops called biogeochemical cycles, which are powered by the flow of energy.
Answer:
d
Explanation:
photosynthesis creates the end product of glucose used for energy while cellular respiration breaks down glucose in order to make its own energy
