The main culprit for global warming appears to be ________
A) carbon dioxide
B) nitrous oxides
C) chlorofluorocarbons
D) methane
E) inaccurate computer models
Answer: A
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In which part of the area in the Investigation would you most likely find uncontaminated groundwater?
A) North B) East C) South D) West
What is the ratio of sea to land on Earth?
A) 61: 39 B) 71: 29 C) 81: 19 D) 51: 49
The process of sequential land use focuses on
A) reclamation of land from previous uses for new uses B) sequences of land use that involve increasing levels of contamination C) sequential use of land for similar purposes D) preservation of scenery for subsequent land uses
The closest position taken by the Earth relative to the Sun is ________ million kilometers (miles)
A) 10 (6.21 miles) B) 47 (29.20 miles) C) 147 (91.34 miles) D) 1,470 (913.41 miles) E) 14,700 (9134.15 miles)