As human population and demands for resources have changed, our definition of sustainability has also changed. One hundred and fifty years ago, human resource use was largely determined by ________
A) consideration of human justice
B) human needs or desires
C) the need for balancing multiuses/demands for a resource
D) the necessity to avoid human conflict
E) the understanding of resource supply
B
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The crossopterygians were well-adapted to move onto the land because they had ____
A)lungs, but not necessarily a means for locomotion B)a means for locomotion, but not necessarily lungs C)cartilaginous skeletons D)lungs and a means of locomotion E)webbed feet
Salt wedging is of slight consequence in ________
A) regions above the treeline B) humid regions C) marshes D) arid regions E) volcanic regions
Which of the following is/are a setting(s) where surface water becomes groundwater?
A) A spring B) A river that is higher than the water table C) Where an impermeable unit lies at the surface D) All of these are correct. E) None of these are correct.
What are fossil fuels, and why are they given this name?
What will be an ideal response?