Which of the following will contribute to water conservation?
A) washing dishes by hand
B) using aerial sprays for crop irrigation
C) planting non-native wetland plants for landscaping
D) watering lawns during peak sunlight hours, when plants need water most
E) watering lawns at night, using low-flow faucets, and landscaping with native plants
Answer: E
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During combustion, the oxygen atoms of oxygen molecules
A. become oxidized. B. gain a negative charge. C. remain neutral. D. gain a positive charge.
The fossil record is incomplete because
a. Not all fossils have been found. b. Some fossils have decomposed. c. Some life forms left no fossils. d. Some life forms have left no fossils and some have decomposed e. Not all fossils have been found, some have decomposted and some life forms have left no fossils.
All of the following are nonpoint sources of water pollution except
a. offshore oil wells b. livestock feedlots c. urban lands d. Croplands e. parking lots
The winter characteristics of a maritime polar air mass is
A) very cold and dry. B) bitter cold and dry. C) warm and dry. D) warm and humid. E) cool and humid.