What are positive and negative space? (in art)

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.

Reporter christopher wren wrote about the miraculous escape from bombing of the dome of st. paul’s cathedral, designed by sir ernest pyle true or false

What are the colors that cannot be made by mixing other colors