The residents can carpool from place to place, bike, or walk, which significantly reduces fumes. They can also grill less, and have fewer fires in their fireplaces.
Answer:
I'm not 100% sure but I think its A. Here is an article I found on it. I might be wrong.
<span>Ribosomal RNA (rRNA) associates with a set of proteins to form ribosomes. These complex structures, which physically move along an mRNA molecule, catalyze the assembly of amino acids into protein chains. They also bind tRNAs and various accessory molecules necessary for protein synthesis.</span>
D) starting to move and then increasing speed. Hope this helps