What effect has urbanization had on air pollution in the United States and around the world? People driving more cars leads to less air pollution.
People driving fewer cars results in more air pollution.
Providing less mass transportation leads to less air pollution.
Locating more industries in urban areas creates more air pollution.

Providing less mass transportation leads to less air pollution.

the diploid number of chromosomes is sometimes represented by the symbol 2n. for the fruit fly, the diploid number is 8, which can be written as 2n = 8, where n represents twice the number of chromosomes in a sperm or egg cell.

the answer is lactic acid from anaerobic respiration. the acid in lactic acid is what creates sore and burning muscles. if you think about how acid burns that will give you a clue for questions like this.