Science Help - Ozone, FEV, Fuel Cell Cars?

Question

This is for my Science Final tomorrow and the information I need does not show on webpages.

1) How does a fuel cell car work?
2) How do the 4 types of air masses differ?
3) Why is the climate here (California,USA) the way it is?\
4) What is the % of a solution?
5) As you get older, what happens to your lungs?
6) What makes a fuel engine run?
7) What does PPM stand for?
8) Particle Sizes
9) Energy by volume
10) What generates energy from sun? (I put down solar panels, is this right or wrong?)

Please help! I need to write essays about these things too! I will choose the best answer. Please answer as many as you can.

Thank you so dearly.
-Ashley

Answer 1

1) converts H into H2O
2) Differ by either being dry/humid and cool/warm, depends on their origination place
3) Pacific ocean regulates temperature and brings in warm, humid air masses
4) % of solution is amount of solute in a solution
5) Your lungs do not really age, they continue to breath and function
6) Gasoline or fossil fuels
7) Parts per million
8) Size of any particles, usually measured with millimeters or less
9) Amount of energy you can get per volume of something
10) Solar panels collect energy from the sun and make it usable. Nuclear fusion from within the sun's core creates it's energy.

Hope this helps!

Answer 2

I agree with the eventual use of hydrogen fuel cell technology, but the heavy water needed to run a hydrogen car is about a 1-1 energy ratio. It takes about the same amount of energy to produce the heavy water as it expends in energy. This wouldn't be a problem except for the fact that it would take a massive amount of desalination plants to produce the fresh water along with a massive amount of new Nuclear reactors to not only power the desalination, but to also power the process in turning the H2O to H2O2. That is the wave of the future and I think the only way forward, but there are so many things that would have to happen in between that we just are not doing. I say use up as much oil as possible, if it truly is a finite resource it will push us to innovate rather than us do it half a**ed kicking and screaming. Mankind innovates best out of a real need, not out of a bureaucratic want or wish.

Answer 3

1) a fuel cell takes hydrogen and oxygen and combines them in an electrolyte (fluid or gel). this generates a voltage potential across the terminals. so in summary it makes electricity out of hydrogen and oxygen.
2)
3) So cal climate is a function of the equatorial ocean current and the common on-shore wind. the wind is warmed by the relatively warm ocean, which generates clouds. this regulatess the temperature range and keeps humidity fairy comfortable.
4 of a solution is the ratio of one substance in a base fluid (usually water, sometimes alcohol) expressed as a percent. if it is two fluids then it is usually teh ratio of volumes, if it is a solid in a fluid tehn it is usually a ratio of mass or moles.
5)
6 a fuel engine combines a combustible gas or vaporized fluid with air in a closed piston. the combustion creates a large increase in temp and pressure which forces the piston to increase volume. that turns a crank, creating mechanical energy.
7 PPM means parts per million. it is a ratio of mass or moles meaning that for example smog is expressed as parts (mass of smog) per million (mass of air).
8 particle size is the physical width of a particle, often measured in nanometers.
9
10 solar panels coud be right. normally on school tests they are looking for 'plants'; or something like.