What negative effect occurs when there is a decrease in air quality? faster evaporation of water in the soil the drying out of fertile land, resulting in dust bowls the melting of glaciers and polar ice caps increased illnesses that result in a decrease in population

if our air becomes mucky/dirty, then we will get sick from it. if there is manure all over the place, you'd become sick from smelling it for too long. simple. ^^

so, the answer is d. :D

read the sentence below and answer the question that follows. one of the norms in the village was to meet at the town square on fridays for a community dinner and dance. the underlined word in the sentence above is best defined as a a. cultural element shared by all people around the world b. specific area in a town used for traditional community events c. religious custom accepted and practiced by all members of a village d. behavioral pattern that is regularly accepted by a group of people