Question

Ash from burning volcanoes, dust from storms and forest fires are the natural sources of ___ pollution.

Answer 1

Natural air pollutants include fog and mist, ash, soot, salt spray, and volcanic and combustion gases. Volcanic eruptions and forest, swamp and grass fires launch soot and ash into the atmosphere, which reduces sunlight and lowers temperatures. Eruptions and fires also produce carbon dioxide, carbon monoxide and other polluting gases.