How changing to low gear(larger) while going uphill makes it easy for a bicycle rider?
Explain

The answer is b.the gaseous state is electrically positive, while the plasma state is electrically negative. 

Amplify and switch electrical power and electronic signals

The purpose of a lab is to do your "expirements" the importance of the topic is so you can now what the story is about and the last one is because no one is me with my question ( what is 3 over 4 x - 9 = 27 maybe you can )

From negative to negative