2nd+Period+Group+4

=Deforestation=

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Trees are the most vital [|species] of the earth. Without them we wouldn't be able to survive.The make up the earth's oxygen supply that keeps us alive. Thay act as filters of carbon dioxide. They make oxygen from the proccess of photosynthesis. They absorb the carbon dioxide from the air and convert to oxygen. This is why it is so important to protect our trees today. According to research, deforestation has occured ever since the humans have inhabited the earth but in the the 1800's the rate of deforestation had grew really heavily. 50% of tree cover has disappeared due to [|human activity.]====== =Causes for deforestation= ==

The cutting down of trees occurs for many number of reasons, One of the primary reasons is that being the short term economic benefits. Given below are some more common causes of deforestation

 * ====building new houses====
 * agricultural reasons such as farming
 * used for charcoal,fuel,and heating purposes.

=Effects of Deforestation= ====Without tthere would be low rees levels of oxygen and more levels of carbon-dioxide,therefore the atmosphere will be filled with carbon dioxide making the climate real hot since carbon is a greenhouse gas.====

some [|effects of deforestation]

 * ====erosion of soil====
 * disruption of the water cycle
 * flooding and drought
 * loss of biodiversity
 * climate change(global warming)

=How does deforestation affect wildlife?=

Trees are home to many animals such as birds, monkeys, and other arboreal animals. That means cutting trees means destroying animals'. They would be forced out of their homes and move to another environment. They would have to adapt. Some wouldn't not be as successful and die out. If this trend of deforestation continues, the rate of endangered species will increase and therefore some species will become extinct.

=What is Geothermal Energy?=

[|Geothermal energy] is the energy from the earth's core. Globally, geothermal energy is used in 24 countries.
Geothermal ennergy is effective, reliable.sustainable, and eco-friendly, but it is limited to places near the tectonic plate boundaries. Geothermal energy makes up 18% of the world's power source.[|Geothermal electric plants] are built where high temperature geothermal resources are found near the surface. Geothermal plants can be located near hot springs such as geysers.

=Advantages of geothermal energy=


 * there is no comsumption of [|fossil fuels]
 * emits no green house gases
 * The geothermal plants are not huge, which means the natural [|environment] is not really affected
 * It is inexhaustible; it never runs out

=Disadvantages of geothermal energy=


 * the plants have to be located near the tectonic plate boundaries, you just cant build a geothermal plant anywhere
 * pollution could occur if holes or not drilled properly.
 * the type of rock must be easy to drill.