Answer:
The oil produced in United States is light and low sulfur content and they do not have proper processing facilities, hence purchase it from other countries.
Explanation:
About 9.93 million barrels per day U.S purchase oil from 86 countries. Because the crude oil present is not homogeneous in nature. It is very light in nature with low sulfur content or may be high,this particular factor depends upon the method of the refining. Most of the oil are being exported by the Saudi Arabia and then comes Russia followed by Iraq. Despite the collapse in price, U.S. dependence on foreign oil should continue to decrease.
C. smog
is the correct choice plug
When an ion or a molecule passes through a membrane without something facilitating, or encouraging that passage, such as a protein does. What drives it is the force of the diffusion itself instead.
Answer:
the TDaP vaccine and the MMR vaccine
Explanation:
2 vaccines that help prevent 3 diseases at the same time. the TDaP is a vaccine to prevent Diptheria, Tetanus, and Pertussis. the MMR vaccine is another vaccine that prevents Measles, Mumps, and Rubella all at once as well. i hope this helps :D
P.S. also i will put a screenshot here for you so you can use it for future reference :D
