The soil structure resulting from the castings of earthworms
A) improves the infiltration and aeration of soil.
B) decreases the infiltration and aeration of soil.
C) decreases the nutrient-holding capacity of soil.
D) improves the nutrient-holding capacity but decreases the aeration of soil.
A
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In which order do the following processes typically occur to loosen, pick up, and move a sediment particle?
A. Erosion, weathering, transportation B. Transportation, erosion, weathering C. Transportation, weathering, erosion D. Weathering, erosion, transportation E. Erosion, transportation, weathering
Which animal below is a mammal?
a. dinosaur b. bird c. frog d. turtle e. horse
Before the northern part of the Rocky Mountain Region was part of Canada, the territory was controlled by who?
A) France B) The Hudson's Bay Company C) The Northern Rockies Company D) Russia
Which of the following is NOT created along convergent plate boundaries?
A) a subduction zone B) mountain ranges and active volcanoes C) rift valleys D) the world's most powerful earthquakes E) deep trenches