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Which Is True of the Level of C in Our

Question 23

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Which is true of the level of C Which is true of the level of C in our atmosphere? A) It is reached 400 ppm in 2013. B) The rate of increase leveled out in 1976. C) The level of C was much higher in 1955 than today. D) The level of C is decreasing at 3.1% per year. in our atmosphere?


A) It is reached 400 ppm in 2013.
B) The rate of increase leveled out in 1976.
C) The level of C Which is true of the level of C in our atmosphere? A) It is reached 400 ppm in 2013. B) The rate of increase leveled out in 1976. C) The level of C was much higher in 1955 than today. D) The level of C is decreasing at 3.1% per year. was much higher in 1955 than today.
D) The level of C Which is true of the level of C in our atmosphere? A) It is reached 400 ppm in 2013. B) The rate of increase leveled out in 1976. C) The level of C was much higher in 1955 than today. D) The level of C is decreasing at 3.1% per year. is decreasing at 3.1% per year.

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