Which of the following is the best reason that trees are important for overall air quality?
a. trees provide a balance in components of the atmosphere.
b. trees create shade, cooling the air.
c. trees release moisture into the air, cooling the environment.
d. trees maintain overall water quality.

Two legal aliens and their child immigrate to the united states as refugees. after years of working towards citizenship, the legal aliens attain citizenship through the naturalization process. the child is automatically granted citizenship if he is under the age of a. 18 b. 21 c. 25 d. 35 select the best answer from the choices provided a b c d