40 POINTS!! ANSWER CORRECTLY FOR BRANLIEST! Which of these is a characteristic of warm air?
A. It transfers energy through radiation.
B. Its molecules are far apart.
C. It sinks due to convection.
D. It cools the land below it.

Which of the following is not considered an appendage of the skin? nails glands follicles none of the above

How did the discovery of the rhesus factor affect society? o more patients died from having a transfusion with the wrong rhesus factor 0 new treatments during pregnancy could prevent harm to the developing child. o less donated blood could be used in the treatment of patients. the number of blood types was reduced by half

African penguins, which inhabit the coasts of southern africa, were classified as an endangered species in 2010. two significant threats to their survival are ecosystem damage from oil spills and overfishing by humans. overfishing depletes the food supply of african penguins. the best method to reduce the threat of overfishing would be to . the risk of oil spills could be reduced by increasing the use of , which should oil consumption. if an oil spill does occur, could be used to remove the oil so the ecosystem may more quickly recover.