What is a horizontal datum?
What will be an ideal response?
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Carbon dioxide combines chemically with water to form a(n) ____
A) ?weak acid B) ?weak base C) ?strong base D) ?strong acid
One benefit of irrigating crops is that it ____.
A. increases surface water supply B. increases salinization C. increases groundwater supp D. prevents waterlogging E. boosts crop productivity on farms
In Costa Rica, cutting down forests will almost immediately increase the cost of producing __________.
a. timber for building homes and factories b. fresh water c. wood pulp for the many paper factories in the region d. all of the listed choices
Geopressurized natural gas is gas
A. formed at low pressures before a fossil fuel deposit has matured sufficiently to form oil. B. found in pockets in coal mines. C. dissolved in deep pore waters. D. under pressure from associated oil.