Since 1910, the urban population has grown by nearly 500 percent while the rural population has grown by 19 percent. ... The Census Bureau estimates that during the same 30-year period, the population of the 49 states grew by more than 82 million people, or 36 percent
The answer is alveoli, there the only structures.
Hope this helps! Have a BLESSED day! :-)
Answer:
i pick C
Explanation:
Because in any situation both good or bad we should smile
Well A and C works hand in hand though
Answer:
i would say you can go to a link but no link T-T
Explanation: