Q1. On page 31, there is an experiment using a lemon. How does the lemon act as a battery?
Q2. What do you think about solar energy? List the good things and(or) bad things, then state your opinion.
To be answered by 9/1 after reading chap1.3(28~39p)
Q1. It is because the lemon acts as a electrolyte.
Q2. Solar energy isn't harmful to nature, and has a never ending source of energy, the sun. But it is very pricey, and while building the solar energy system, it must have a place to be built, and it will harm nature in that process. I think the main point here is that, will it harm nature more in the building process, or will it benefit nature more when finished. But for now, the solar energy system is not fully grown. And I think it's too early to encourage the building of solar energy.