List the two main sources of anthropogenic carbon dioxide ...

[mckennatimberlake]

List the two main sources of anthropogenic carbon dioxide production.
 
  What will be an ideal response?

Question 2

The input of anthropogenic carbon dioxide into the atmosphere
 
  A) comes primarily through deforestation.
  B) does not affect the rate at which the ocean absorbs carbon dioxide.
  C) comes primarily from the Northern Hemisphere.
  D) has been significant from a climate standpoint since the late sixteenth century.

[pallen55]

Answer to Question 1

Answer: Since the middle of the 19th century, there has been an exponential increase in the input of carbon dioxide to the atmosphere by industrial activities (chiefly fossil fuel combustion and cement manufacture). These industrial releases have been augmented by smaller but still significant releases resulting from deforestation. Deforestation adds CO2 to the atmosphere through direct burning of the logged trees, decomposition of biomass, and other processes. Moreover, the removal of trees reduces the ability to remove subsequent inputs of carbon dioxide by photosynthesis.

Answer to Question 2

Answer: C

[mckennatimberlake]

Gracias!

[dawsa925]

TYSM