There are six types of crystal forms. there is cubic,tetragonal, hexagonal, orthorhomic, monoclinic, and triclinic. Every crystal has its own distinctive shape. This helps us identify what type the crystal is.
My opinion on what is the best renewable resouce would be the sun. Solar power is great because once you get pass the exspensive equipment, you get energy for free. Another good thing is if it is connected to your house and an outside electric box for neighbors to get energy. If you are sombody who barely use enegy that means it gives out to your neighbors. Then you can get paid for your energy. Now even though you lost money you gain money in the longrun eventually.
My favorite map projection would be Robinson because it seems the most accurate than the others. Text books seem to use it based on this format. It seems to be the most popular and to be well known.
Oceanogrophy interested me because I love the ocean. I don't know much about it and that's why it interests me. I would like to know how the ocean functions. Also how it move and why it moves certain way. That's is why oceanography interests me.