Which of these is not a part of the federal court system?
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Two thirds of the world’s population survive primarily on __…
Two thirds of the world’s population survive primarily on ___________________.
Which choice is a disadvantage of building a hydroelectric d…
Which choice is a disadvantage of building a hydroelectric dam?
Hydrogen as a fuel has a _______________ net energy yield.
Hydrogen as a fuel has a _______________ net energy yield.
Which choice is NOT a soil conservation method?
Which choice is NOT a soil conservation method?
Most of the world’s current food production is produced by _…
Most of the world’s current food production is produced by _________________ agriculture.
Most of the areas with water shortages in the United States…
Most of the areas with water shortages in the United States are ________________.
Which is the most polluting of all the fossil fuels?
Which is the most polluting of all the fossil fuels?
Which choice is permitted in organic farming?
Which choice is permitted in organic farming?
Which choice is a disadvantage of animal feedlots?
Which choice is a disadvantage of animal feedlots?