Monday, January 16, 2012

Wind Energy

Wind energy is good because it is renewable and there is no pollution. They take up a lot of space and are intermittent. Some people don't like it because they don't look nice and they make a "hum" sound. One more drawback is that they are expensive to make.

Acid Rain

Acid rain eats away at statues and kills forests. Acid rain causes acidification of lakes and streams and contributes to the damage of trees at high elevations

hyrdo enenergy


This dam is a large piece of cement blocking off the river. This resource is Renewable, because all the water in the world is always going around. IT is clean with no pollution and you can always have the energy on demand the only draw back is that there is a limited amount of rivers and it effects the river flow. meaning the life for fishes that go through or minerals can be altered.

by kevin fetterley

Energy


Solar panels have many benefits; including that solar energy is both sustainable and renewable. In addition solar panels require little maintenance.
disadvantages include that solar panels require a lot of space too take up also the panels can only be useful while it is sunny outside

Hy 2 drogen



This is a diagram of the steps needed to create Hydrogen. Hydrogen is a new alternative energy which has much potential. It can create abundant amounts of electricity and be used as fuel for vehicles. It is great because unlike many renewable energy sources, it can be stored. Furthermore, it is extremely clean as the only emission it creates is water vapour! Nevertheless, people are very hesitant of this technology as it is yet to be fully developed. It is also very explosive, and it does need to be extracted from another source.

Wind Powa

Wind power is a renewable source of energy and is very clean, but it takes up a lot of space and has intermittent periods when it's actually producing power.

Hydropower


Hydropower is renewable, abundant, it also creates 1/4 of the world's energy, it is power on demand, and good for tourism. The drawbacks are that damming rivers effects river flow, and if there is a drought it can effect the hydropower.