Most of the world's food supply is grown on small slash-and-burn garden plots.
Answer the following statement true (T) or false (F)
False
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Most soil erosion prevention measures
A. only allow the planting of deep-rooted crops. B. try to slow down wind and water velocity. C. try to compact the topsoil. D. keep the topsoil covered at all times.
List some ways in which organisms contribute to mechanical weathering. What will be an ideal response?
Nucleic acid is to ________, as lipid is to ________.
A. Cellulose structure; genetic storage B. Cellular membrane structure; energy storage C. Genetic storage; cellular membrane structure D. Energy storage; genetic storage E. Energy storage; cellulose structure
The most densely populated region of Europe tends to be
A) Scandinavia (ex. Norway, Sweden and Finland)
B) The Baltic States (Estonia, Latvia and Lithuania)
C) the Balkan Peninsula (ex. Greece, Macedonia and Bulgaria)
D) Spain and Portugal
E) Belgium, the Netherlands and Luxembourg