How does water pollution affect the standard of living in sub-Saharan Africa? A. It allows workers to move to regions with less pollution. B. It restricts where manufacturers are able to build factories. C. It causes countries to restrict the sale of automobiles. D. It causes many people to not be able to work beacuse they are sick.

blood enters the heart through two large veins, the inferior and superior vena cava, emptying oxygen-poor blood from the body into the right atrium of the heart. as the ventricle contracts, blood leaves the heart through the pulmonic valve, into the pulmonary artery and to the lungs where it is oxygenated.

it's d - life cycles - apex

the wetland preservation movement began in the u.s. in earnest with the clean water act (cwa) of 1972. although not specifically written to protect wetlands, the cwa is comprised of a series of regulations designed to prevent pollutants from contaminating u.s. waters.

cuz some people don't have enough food. that's why we need more ppl to donate food to the hungry.