Add the protons and neutrons to find atomic mass 5+4=9. the atomic mass is 9
Answer:
Explanation:Spontaneous generation is a body of thought on the ordinary formation of living organisms without descent from similar organisms. The theory of spontaneous generation held that living creatures could arise from nonliving matter and that such processes were commonplace and regular.
Velocity requires distance and speed
At the new moon the moon lines up between the earth and sun. When half of the moons disc is illuminated we call it the first quarter moon.