Which statement best explains why the air pressure is greater at the poles than at the equator? O A. Cold air rises, causing higher air pressure near Earth's surface.
O
B. Cold air sinks, causing higher air pressure near Earth's surface.
O
C. Cold air expands, causing higher air pressure near Earth's surface.
O D. Cold air condenses, causing higher air pressure near Earth's surface.

Duchenne muscular dystrophy is a serious condition caused by a recessive allele of a gene on the human x chromosome. the patients have muscles that weaken over time because they have absent or decreased dystrophin, a muscle protein. they rarely live past their twenties. how likely is it for a woman to have this condition? a) women can never have this condition. b) one-fourth of the daughters of an affected man would have this condition. c) one-half of the daughters of an affected father and a carrier mother could have this condition. d) only if a woman is xxx could she have this condition.

At which point is crust neither created nor destroyed? island chain mid-ocean ridge divergent boundary transform boundary

Will give ! ! widentify the advantages and disadvantages of renewable and nonrenewable energy resources.