Extreme temperature changes or increased moisture speed up the weathering rate.

The statement ‘Extreme temperature changes or increased moisture speed up the weathering rate’ is true. It increases the wind speed of air as it accumulates moisture from land and sea by these temperature changes.

the element that provides strength to the exoskeletons of clams and oysters is phosphorus. this is so because calcium carbonate is the main component in the shells.

explanation:

i think a) betsy can donate only blood to mark is correct because, mark and betsy have the same blood type. whereas nobody else has b+ blood so betsy can't donate to them.