Choose the air pollutant that matches each description it is a toxic, odorless, and invisible gas. natural sources of the pollutant include volcanic eruptions, forest fires, and bacterial processes, but most anthropogenic sources come from automobiles. natural emissions of the pollutant far exceed anthropogenic emissions. which pollutant has these characteristics? it is a gas that produces a brown haze in polluted areas. in the united states, about two thirds of all of this type of pollution comes from automobiles and about one third comes from coal burning. which pollutant has these characteristics? it is considered a secondary pollutant when it forms near the earth's surface. it is a photochemical smog that forms when sunlight breaks down tailpipe emissions. which pollutant has these characteristics? over 80% of anthropogenic emissions of the pollutant originate from the burning of coal during electricity generation. the pollutant can form acid rain when it combines with nitrogen compounds. which pollutant has these characteristics? it consists of microscopic aerosols, consisting of liquid and solid particles, suspended in the atmosphere. sources of the pollutant include fine volcanic ash, pollen, fire smoke, salt particles from ocean spray, and wind-blown dust. black carbon soot is a type of the pollutant that results from the burning of fossil fuels, vegetation, and animal dung. which pollutant has these characteristics? it consists of toxic compounds of hydrogen and carbon, and includes methane, butane, propane, and octane. anthropogenic emissions of the pollutant primarily come from industrial processes and from automobiles, when gasoline is burned incompletely and when gasoline evaporates at gas stations. the pollutant reacts with other compounds in the air creating toxic secondary pollutants and contributing to ozone formation. which pollutant has these characteristics? macbook pro 100% v тo o o 1 what would happen to earth's radiative equilibrium temperature if cloud cover increased? how would seasonality be affected if earth's tilt increased to 75 degrees? it would change unpredictably. o it would decrease. it would not change it would increase seasonality would hardly change. o seasonality would increase. seasonality would decrease. there is no relationship between seasonality and the tilt of earth's axis. if earth's axis were tilted 90 degrees, at what latitudes would the tropics be found? what is the longest day of the year in the northern hemisphere? o on the equator only 66.5 degrees north to 66.5 degrees south 90 degrees north to 90 degrees south 23.5 degrees north to 23.5 degrees south march 21 june 21 december 21 february 2 why is the air's density greatest at sea level? because evaporation from the occans creates more water vapor, which increases air pressure because heavier and larger air molecules settle near earth's surface because only those air molecules that create air pressure are found near the surface because the weight of the atmosphere compresse the molecules most at the bottom of the atmosphere, which is near sea level