Natural gas (methane (CH4)) is the cleanest burning fuel<span>, emitting the smallest amount of carbon dioxide of all the </span>fossil fuels<span> (coal, oil and natural gas).</span>
Decrease as the more frogs there are the more flies will be eaten so that means the flies will decrease.Also if the flie population gets low enough the frog population would shrink too to balance it.
Yeast,fern,moss,mold,mushrooms
Yeast has many comercial uses in the production of breads, fuel, sodas, and wine.
I think its C. the cats tend to eat more in the evening