What are some of the optimistic worldwide changes that may follow the advent of successful fusion reactors?
A) Economies will be geared to relative abundance rather than scarcity.
B) Humans will have more opportunities to focus on social issues, such as world hunger.
C) There will be fewer hostilities between nations.
D) all of the above
D
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Which of the following characterize sustainable agriculture?
A. Promoting monoculture, use of organic fertilizers, and conserving topsoil B. Lack of need of substantial fossil fuels, maintaining current aquaculture, and using organic fertilizers C. Conserving topsoil, using of organic fertilizers, and lessening the use of genetically engineered crops D. Maintaining current aquaculture, using of organic fertilizers, and promoting monoculture E. Promoting monoculture, lessening the use of genetically engineered crops, and using organic fertilizers
The direction of wind or water flow can be interpreted using _______
a) wave marks b) ridge marks c) ripple marks d) mullion marks e) burrow marks
The planting of strips of trees and shrubs along the edges of plowed fields is used to
A) decrease wind erosion. B) form water catchments for irrigation and wildlife conservation. C) drain off excess water during heavy rainfall events. D) limit the spread of crop pests.
Predict which of these biome groups would have the most biodiversity?
A. Tundra B. Forests C. Savanna