Who was the first to propose the heliocentric system? A. Aristotle B. Copernicus C. Ptolemy D. Aristarchus

What should you do before editing a photograph? tag the photo. filter the photograph. change the iso setting. save a back up copy.

Sarah and juan were running in the school track meet. the muscles in their arms and legs them run fast. other muscles that you cannot see were also at work. the most important muscles for this track meet were the muscles in their a) arms. b) eye. c) feet. d) heart.

Asnap is a three-dimensional form or a two dimensional form?