What was the approximate concentration of CO2 in the atmosphere in 1965? 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: D
Environmental & Atmospheric Sciences
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Earth's magnetic field is generated from within the uppermost mantle and crust
Indicate whether the statement is true or false
Environmental & Atmospheric Sciences
The notion that the traits that help a species survive and reproduce are passed along more frequently than those that do not is known as
A) Lamarckianism. B) gradualism. C) punctuated equilibrium. D) natural selection.
Environmental & Atmospheric Sciences
A surface low pressure center is generally associated with ____ on an upper level isobaric chart
a. a trough b. a ridge c. zonal flow d. convergence e. divergence
Environmental & Atmospheric Sciences
Suppose you are standing on the standard time meridian of 75°W. Which would be the next standard time meridian to your west?
A) 76°W B) 90°W C) 180°W D) 100°W E) 235°W
Environmental & Atmospheric Sciences