Answer: Countour plowing
Explanation: Contour plowing in Pennsylvania in 1938. The rows formed slow surface water run-off during rainstorms to prevent soil erosion and allows the water time to infiltrate into the soil.
Answer:
Crystal Form and Mineral Habit
Explanation:
The term crystal habit describes the favored growth pattern of the crystals of a mineral species, whether individually or in aggregate. It may bear little relation to the form of a single, perfect crystal of the same mineral, which would be classified according to crystal system.
Answer: the answer is A(Primary Waves)
Explanation:
p waves stand for primary waves. early seismologists called them that because the waves were the first to arrive at seismometers from some distant quake
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I think the answer might be D
Answer:
Explanation:
Natural gas is most commonly extracted by drilling vertically from the Earth's surface. .Hydraulic fracturing, horizontal drilling, and acidizing are processes to expand the amount of gas that a well can access, and thus increase its productivity.
