The length of the martian year is 1.88 earth years. what is that time in hours? use standard conversion factor charts to solve & the correct number of significant figures in your final answer. if the answer is greater than 10,000, use scientific notation.

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.