Groundwater can dissolve rocks because it contains weak carbonic acid which forms when rainwater dissolves carbon dioxide from air.
a. true
b. false
Ans: a. true
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What legislative policy or governing body reduced the number of dolphin deaths associated with tuna
fishing? a. The creation of the International Whaling Commission b. The creation of National Marine Fisheries Service c. The passing of the Marine Mammal Protection Act in the United States d. The creation of a United Nations commission
Which of the following objects is not part of the vector data model in ArcGIS?
A. area B. line C. point D. volume
Geologists from which continent were initially the least receptive to the continental drift hypothesis?
a. North America b. Antarctica c. Africa d. Australia e. South America
There are about 3.5 million homeless people in the United States currently. About how many homeless people are there in Washington, D.C?
A) 3,000 B) 14,000 C) 60,000 D) 100,000