Geographers frank and deborah popper have proposed that in the future, much of the great plains should be taken out of agricultural production and instead used for what?
a. a separate homeland for native americans
b. a huge grassland habitat for restored herds of buffalo
c. to open the area up for the mining of oil from deep shale reserves
d. for the development of wind farms.

i guess that visual aids present persuasive examples to what you are presenting, some factors would be theme (does it fit with the color, information, what you are presenting), size (can you see it, is it a big enough span of data/information), and overall look of the visual aid.

hope this : )

well, you would divide 135 by 33 to get your answer. then that is how many seconds it would take. boardman should fly about 132 m or 4.090909090909091 seconds.

truck y has a greater velocity than truck x.

0.93xc=0.93x3x10^8m/s

2.54cm is 1 inch

360seconds i 1 hr