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Which of the following is the best example of a way human lifestyles affect environmental systems?

a) Using radioactive materials causes ground pollution as it causes methane to seep into the ground.
b) Burning fossil fuels causes water pollution by increasing the amount of water vapor in the atmosphere.
c) Deforestation causes acid rain by decreasing carbon dioxide (CO2) in the atmosphere.
d) Using aerosols that contain chlorofluorocarbons (CFCs) decreases the amount of protective ozone (O3).

fossil fuels are very scarce on earth and cannot be replaced burning them increases greenhouse gasses such as (carbon dioxide - CO2, water vapor and methane) when these are released into the environment they lead to global warming- its one of the most direct and dangerous effect humans have

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