Burning fossil fuels, cutting down large forests, and not replanting the areas with trees will affect the global carbon cycle by
A) increasing atmospheric concentrations of carbon dioxide.
B) decreasing atmospheric concentrations of carbon dioxide.
C) increasing the geological production of fossil fuels.
D) increasing levels of nitrification and reduce acid rain.
A
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The popular noodle soup known as pho originated in which nation of Southeast Asia?
A) Malaysia B) Vietnam C) Philippines D) Indonesia E) Thailand
Archean and Proterozoic greenstone belts formed in similar tectonic settings
Indicate whether the statement is true or false
Coal, natural gas, and oil are not considered renewable sources of biomass energy because they
A) were produced by photosynthesis. B) release carbon dioxide when burned. C) contribute to ozone destruction. D) were formed millions of years ago.
In reference to the dry (B) climates, there are usually more years when rainfall totals are above the average than below the average
Indicate whether the statement is true or false