Why are rain forests important to the world? (more than one answer) a)species found in the rain forest have been used for medical purposes. b)rain forests are the natural habitat for 30 percent of the world's plant and animal species. c)rain forests are a valuable food source for the world. d)rain forests increase greenhouse gases.

i am a little confused myself with what goes with the letters and what goes with the numbers but ill do my best to you

the cordillera states and grand canyon are along the southwest u.s. and northern mexican pacific.

the great plains and southwest desert are also the prairie and home to many earthquakes too .

the coastal plains have poor soil and many factories started in the south.

is this what u needed? if not i can see what i can do