What causes ocean currents?
A) temperature differences in the oceans
B) density differences in the oceans
C) unequal heating of the earth
D) winds
E) none of the above
C
You might also like to view...
Most human communication is non-verbal
Indicate whether this statement is true or false.
Japanese kudzu vine offers all of the following except
a. starch used in Asian beverages and herbal remedies b. control of soil erosion c. toxic berries that deplete bird populations d. a source of tree-free paper e. herbal remedies for diseases
Removing dams and allowing rivers to flow freely can help restore biodiversity
Indicate whether the statement is true or false
Terracing, contour farming, intercropping, and crop rotation all ________
A) are prohibited in organic farming B) are techniques for conserving soil resources and fertility C) contribute to erosion and desertification D) are aspects of IPM E) contribute to leaching