D. 100 mph
1. You travel 200 km in 2 hours, what is your speed?
a. 10 km per hrb. 400 km/hr c. 100 km/hr

How do scientists think that gravity affected the formation of our solar system?

Although respiratory organs vary across different organisms, they all contain respiratory surfaces that have a large surface area and are extremely thin. explain why having an extremely thin respiratory surface with a large surface area is advantageous for the process of gas exchange

What is the atomic mass of an atom that has 6 protons, 6 neutrons, and 6 electrons? a) 6 b) 8 c) + 1 d) 12 e) 18