Coal creates a negative impact on the environment because it contains sulfur and other harmful elements. When you burn coal these elements are then released into the air. And it can cause air pollution and health dangers as it releases a lot of carbon dioxide.
Answer:
is a process of photosynthesis
Answer: there are five hundred and twenty one
<span>There needs to be an independent variable, a dependent variable, a constant, and a control group. The independent variable is the part that is manipulated. The dependent variable is affected by the independent variable. The constant is the part kept the same throughout all of the experiments. The control group is the normal group that is untreated.</span>
Your answer would be B, since you can't make new energy from reactants, but when doing a chemical reaction, it uses energy that was already there to make something new