We lose 5 to 7 million hectares of productive cropland per year to ________
A) soil conservation efforts
B) forest replanting and regeneration
C) recreational land use
D) soil degradation
E) abandonment, feralization, and other factors
D
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Which of the following is a natural source of air pollution?
a. dust blown by wind b. Wildfires c. Volcanoes d. volatile organic chemicals released by some plants e. all of these answers
The cloud form that is best described as sheets or layers that cover much or all of the sky is termed
What will be an ideal response?
When rocks are stressed beyond their elastic limit the deformation becomes permanent.
Answer the following statement true (T) or false (F)
Current globalizing forces have propelled South Asian countries forward as one of the core main economic core areas of the world.
a. true b. false