Which of the following best illustrates the spirit of stewardship?
A) Lobbying government officials to increase the drilling for offshore oil
B) Selecting a source of energy based upon the maximum yield of tax dollars
C) Converting automobiles from gasoline to natural gas as a new source of fuel
D) Promoting the recycling of paper and aluminum on university campuses
D
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An increase in ________________ has also increased the demand on the environment.
-new technologies -population -wealth -none of these is correct -manufacturing
Evidence for the existence of neutrons did not come until many years after the discoveries of the electron and the proton. Give a possible explanation.
A. The neutron is only slightly more massive than the proton. B. The neutron lacks an electrical charge. C. The neutron is nearly massless. D. The discovery required the use of ultrafast computers.
Detrital sedimentary rocks can undergo lithification by ____
A)precipitation B)transpiration C)dissolution D)cementation E)evaporation
Irrigation has allowed humans to grow crops in areas where natural water supplies have been limited. A major challenge that exists in these areas has been ________
A) soil erosion B) soil salinization C) high pesticide use D) low crop diversity