Which two countries emit approximately 40 of all the world's carbon dioxide?

Which two countries emit approximately 40 of all the world's carbon dioxide?
 a. United States and Russia
 b. United States and Germany
  c. United States and China
 d. China and Russia
 e. China and India

Question 2

Narrative and descriptive studies of the Earth represent the cutting edge of geography today.
  Indicate whether the statement is true or false

Question 3

What is the natural capture and long-term storage of carbon in sinks such as forests, farmlands, and oceans called?
 a. cap and trade
 b. carbon sequestration
 c. environmental degradation
 d. clean development mechanism
  e. carbon scrubbing

Question 4

Geospatial technologies include items like GPS, GIS, and remote sensing; these items are tremendous tools, but there have been relatively few advances in the area over the last decade.
  Indicate whether the statement is true or false

Question 5

All oceans, ice, and freshwater sources are included in Earth's _____.
 a. lithosphere
 b. hydrosphere
  c. biosphere
 d. atmosphere
 e. exosphere