Hurricanes build over warm ocean water. What else has to be present for a hurricane to form? A.
a swell under the water that causes a large wave

B.
an increase in salinity of the ocean water

C.
low pressure that pulls in warm surface air

D.
a cold front that cools the surface of the ocean

What is the formula for the compound dinitrogen pentoxide? a. n4o5 b. n5o4 c. n4o6 d. n5o2 e. n2o5

Harry lives in a city, and he has a lung condition known as asthma. on certain days, harry has to stay inside because pollutants in the air make it difficult for him to breathe. which of these pollution sources are nonpoint sources that might bother harry if he goes outside? choose the two that apply.

In a ball-and-stick molecular model, what do the sticks represent?