Final Exam #3

A renewable resource is a natural good that isnt in demand and is easy to replace.(1) Non-renewable resources are resources that are in high demand and are hard to replace like fossil fuels.(1) Water and wind are renewable because we can get really easy but something like oil or gas, we have to buy with alot of money from the goverment.(1) The earth's energy changes even with the slightest change, like if the ocean and wind currents pick up heat from tropics and moves it to the higher latitudes.(2) People today depend on gas for cars and electricity, which are both non-renewable resources. But gas can effect the envirment just by polluting the air and electricity could decrease the coal because we are burning it way to much. Gas helps us get to where we have to go but with the cost of gas it is horrible ($4.08) for people to keep on buying it.(2) This info will help us in the future because we won't have to spend so much on certain non-renewable resources that we don't need, even though some people will say that we can't live without certain things which is false.


Water is renewable



Coal is non-renewable

Sources:(1)Renewable Resources
www.pencils.com
Pencils Inc

(2)Earth System Science
www.oceanworl.edu
Earth's System Science Commitee

Final Exam # 2

The solar system we know is located in the outer reaches of the Milky Way galaxy.(1) The Milky Way galaxy is approximentally 100,000 light years long and in center it is 3,ooo light years tall.(1) The age of the Milky Way is about 4.6 billion years old.(1) The big bang theory is the effort to explain how and when the universe was formed. The think that the universe was formed about 13.5 million years ago.(2) The microwave radiation gave f electrons that are still floating in space(2). They find out how old the electrons are, then they could find out the exact age of the universe.(2) The dust and gas creates brighter and new stars that we see every year.(2) The heat balances the gravity of each star in the galaxy because of the outward force it has on the stars.(3) This will help us in the future because it will show us eventually how the galaxy was formed and when it was.









Sources: (1) Our Solar System
www.enchantedlearning.com
NASA

(2)Big Bang Theory
www.big-bang-theory.com
All About Science Inc.

(3) Life Cycle of Stars
www.thinkquest.org
Thinkquest

Final Exam # 1

A convergent boundary is when both plates come together.(1) When this happens that means it will form mountains. A divergent boundary is when both of the plates come apart.(1) When this happens it will form valley's or rifts.(1) But they could also form earthquakes and volcanoes. A transform boundary is when both of the plates slide past each others just barely rubbing up against.(1) Transform boundaries are known as faults, the most famous fault is San Andreas Fault.(1)
All of these boundaries have other features like the mid-oceanic ridges, which are underwater mountains ranges basically. These are caused when the ocean floor starts to spread part.(1) Plate Boundaries are responsable for the floor spreading, earthquakes,volcanoes, subduction zones because when the plates move then that creates a certain type of boundary and which ever type it creates then that feature happens above earth because of all the pressure forcing it upwards.(1)

By know how and where the plates move the most is a big plus. So that will help us in the future. But some my argue that you don't know when they are going to come so it would be real tough to predict when even though you mostly know where.

Shield volcanoes are low velocity eruptions but can go a long distance in traveling. (2) A Stratovolcano is a type of vocano that is shaped kind of like a cinder cone but with ash.Like for example Mt. Fuji in Japan.(2) Cinder cone volcanoes are smaller types of volcanoes that come out of the small vent up at the top.(2) 80% of these volcaones erupt in the ring of fire. This happens because the ring of fire has the most plate tectonic activity around it(2). There is so many volcanoes, ridges.etc, out there that whenever theres any type of activity something will happen. The worst type of volcano to have is a any type of the Ring of Fire because of how active they are out there in the Pacific Ocean.(2)









Sources:(1) Plate Boundaries
www.scarborough.k12.us.me.us
Web Master: Deborah Tewhey

(2)Volcanes
www.wikipedia.com
Web Master: Wikipedia Foundation Inc.