Which fossil fuel produces the most carbon dioxide?

coal
natural gas
oil
nuclear energy

If x ≤ 25, which could be the perimeter of this rectangle? a) 100 in b) 155 in c) 225 in d) 750 in e) 1500 in

8. is a technique that uses the images from several telescopes to produce a single image. a. reflection b. interferometry c. radiation d. refraction

Hurry on the map above, arrow 1 points to a region where most people are