Answer:
London smog results from a high concentration of sulfur oxides in the air and is caused by the use of sulfur-bearing fossil fuels, particularly coal. This type of smog is aggravated by dampness and a high concentration of delayed particulate matter in the air.
Explanation:
So, the answer would be B or D.
But, it is most likely B due to dampness.
Answer:break down food to be absorbed in the bloodstream.
Explanation: it is the correct answer
I would say "gene", as it is the basic unit of heredity.<span />
