The practice of leaving crop residue on the field between plantings to help prevent soil erosion is known as
A) slash and burn agriculture.
B) swidden.
C) shifting cultivation.
D) no-till agriculture.
D
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Chicago and Moscow have this type of climate: ________
What will be an ideal response?
What is the difference between a folk culture and a popular culture?
What will be an ideal response?
Why can't most tornadoes be viewed on existing radars?
A) The tornadoes contain water and are, thus, invisible. B) The tornadoes are spinning too quickly. C) The tornadoes have diameters that are too small. D) The tornadoes are hidden by the parent mesocyclone. E) The tornadoes have very low pressure, thus creating a vacuum.
A massive cloud of air pollution largely generated in China affects only China, but causes serious respiratory problems there
Indicate whether the statement is true or false