What is fracking and what impact does it have on the environment? ...

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What is fracking and what impact does it have on the environment?

Question 2

The concentration of carbon dioxide in the atmosphere today is higher than it has been in at least 400,000 years.
  Indicate whether the statement is true or false

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Answer to Question 1

Hydraulic fracturing or fracking has become an increasingly common practice in many parts of the world. Fracking uses pressurized injection of water, sand, and chemicals into existing oil wells to fracture the rock and enhance the productivity of the well by increasing the amount of oil and natural gas that can be recovered. The recent expansion of hydraulic fracturing into California offshore wells has led to concern about coastal water pollution and a potential increase in seismic events.

Answer to Question 2

True