What was the approximate concentration of CO2 in the atmosphere in 2015? Use the smoothed curve for seasonally corrected data to make the determination
A) 400 ppm
B) 380 ppm
C) 340 ppm
D) 320 ppm
Answer: A
Environmental & Atmospheric Sciences
You might also like to view...
What limits the ability of organisms to harness unlimited energy? Explain your answer.
What will be an ideal response?
Environmental & Atmospheric Sciences
An extensive aquifer, the ________, is present and allows irrigated agriculture from Nebraska to Texas
What will be an ideal response?
Environmental & Atmospheric Sciences
The trajectory of a projectile that accelerates in only the vertical direction while moving at a constant horizontal velocity is called a
A. parabola. B. circle. C. both of these D. none of the above
Environmental & Atmospheric Sciences
A section of crust is pushed up from below creating a dome-like mountain. What kind of mountain is this?
A) folded mountain B) fault-block mountain C) upwarped mountain D) volcano
Environmental & Atmospheric Sciences