Is a Mexican film directed, theater and actresses
The pyloric valve control food movement from the stomach into the small intestine.
Closely related but different, distantly related but similar
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.