Winged insects typically have four wings. these wings grow out the abdomen head fur or thorax

Ahypothesis that has been tested again and again , with similar results each time may become a law , true or false

Johnny rode his bike to a friend's house 4 blocks down the street in his neighborhood. he immediately rode back home once he realized his friend was not able to play. what was his displacement for the total bike ride? how did you determine this? what could we use as a reference point to determine he was in motion during his bike ride? why can you use it as a reference point

What is the problem in this article? what solution does the article propose?