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i need help with earth science homework?
Question 1: What is your opinion concerning the use of the following to power a home (heating and/or cooling and electricity):
A) Nuclear?
B) Solar?
C) Wind?
D) Geothermal?
E) Natural gas?
Question 2: What is your opinion concerning the use of the following to power a vehicle:
A) Gasoline?
B) Biomass?
C) Gasohol (Ethanol)?
D) Hydrogen fuel cell?
E) Natural gas?
Question 3: What is your opinion concerning recycling the following materials?
A) Aluminum (soda cans)?
B) Plastic?
C) Glass?
D) Cardboard?
E) Newspaper?
Opinions.... on each one?
Question One
(1) Nuclear -- I think that nuclear power's bad enough as it is. Don't put it in your home, even if the technology existed (which it doesn't).
(2) Solar -- Nice, but not yet efficient enough to power most homes, also need to be in a good place as far as sunlight to determine how good or bad.
(3) Wind -- Good, proven that it can power homes and buildings, but some people whine about it not looking pretty to have a vertical turbine on your house. But I like it.
(4) Geothermal -- This is what I personally consider the best option. It's incredibly efficient, and can produce enough electricity to power cities, not just individual homes. Plus, it's available most everywhere save for the Northeastern US.
(5) Natural gas -- Very inefficient, plus the possibility of accidentally blowing your house apart.
Question Two
(1) Gasoline -- It's what we have right now, it works, we should replace it because it makes us dependent on oil that we don't have, a dirty refining process, and dirty combustion.
(2) Biomass -- I have no idea how you would use biomass to run your car. Biomass is burning things to spin a turbine and produce electricity. So... you open the hood of your car and there's a wood-burning fireplace?
(3) Ethanol -- Clean, works and when in a purpose-built ethanol engine, very efficient and more powerful than gasoline. Doesn't depend on oil, all you need is a source of sugar or a cellulosic material. Brazil already uses a nearly 100% ethanol infrastructure, so we know that it works. This is the best option for this question.
(4) Hydrogen -- Inefficient at the moment to create the hydrogen, and the fuel cells aren't very powerful.
(5) Natural gas -- Not powerful enough to run your car. Just slightly better than biomass. True, some things have been built around natural gas, but they're few and far between because... they suck.
Question Three
(1) Aluminum -- No reason we can't 100% recycle it, and we should.
(2) Plastic -- Harder, but again, no reason we can't get close to near 100% recycling, and we should.
(3) Glass -- People have been recycling glass ever since glass was discovered. We should be able to recycle it in 2010.
(4) Cardboard -- Can be made into a mulch and turned into more cardboard or other coarse products.
(5) Newspaper -- Can be mulched and reprocessed into lesser quality but still perfectly useful paper, from kids' construction paper to the kind that you use to wipe yourself (yes, really).
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