Which of these describe the composition of earths atmosphere?
a) mixture
b) substance
c) compound

If the moon has a diameter of 2,159.14 miles, what is the maximum distance that it could be observed by the naked eye with enough detail that you could distinguish it from other celestial bodies (assuming that you have 20/20 vision)

According to newtons universal law of gravitation, which would change the parh of the ball so it traces out widest curved path possible?

Sound is a disturbance that travels through a medium as a