Which of these properties is a physical property of aluminum a) aluminum rusts when it is exposed to moisture and air b) aluminum is a good conductor of heat c) aluminum reacts with oxygen to form aluminum oxide d) aluminum reacts with hydrochloric acid to give off aluminum chloride and hydrogen gas

Which of the following has wavelength longer than the wavelength of viable light? a) x rays b) gamma rays c) radios waves d) ultraviolet waves

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.

Animals that reproduce sexually either do it through external or internal fertilization. read the following statement and decide if it is true or false. birds reproduce through external reproduction which is because the female will then be able to protect the egg.