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>
Answer:
Biogeochemical cycle, any of the natural pathways by which essential elements of living matter are circulated. The term biogeochemical is a contraction that refers to the consideration of the biological, geological, and chemical aspects of each cycle.
Your answer would be D, because these are all relating to how the actions of the scientists will affect the environment and/or organisms.
Almond is the most reliable source for vitamin b12
In protains, DNA, RNA, and chlorophyll.