What is the correct order of the soil horizons from top down?
A. A, B, E, O
B. O, A, E, B
C. O, E, A, B
D. A, E, O, B
Answer: B
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As water cools from room temperature to 4°C (39°F), it ________ and its density ________
A) contracts; increases B) contracts; decreases C) expands; increases D) expands; decreases
Agricultural development can increase erosion rates four to nine times higher than normal unless practices are chosen carefully, resulting in
A. sediment pollution. B. sediment aggregation. C. sediment erosion. D. sediment increase.
A person blowing on hot food in an attempt to cool it is an example of:
A) radiation. B) convection. C) conduction. D) passive cooling.
The leader who conducted a nonviolent campaign for Indian independence in the 1900s was
A. Buddha B. Mahatma Gandhi C. Jawaharlal Nehru D. Mujahideen