Which of the following is a correct example of global warming creating a negative feedback?
A. Ice has a lower albedo than water so replacing ice with water causes the surface to warm.
B. More water evaporating will create more low level clouds causing the surface to cool.
C. Ice has a higher albedo than water so replacing ice with water causes the surface to warm.
D. Less water evaporating will create more low level clouds causing the surface to warm.
Answer: B
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A) Vietnam and Indonesia B) Afghanistan and Syria C) Sudan, South Africa, and Colombia D) Mexico and Colombia E) Ethiopia, Nicaragua, and Somalia
For most South Asians, the critical resource is
A. water B. petroleum C. gold D. iron ore
The permeability of a rock layer on which perched water sits is
A. equal to the hydraulic gradient. B. very high. C. very low.
Large areas of farmlands, woodlands, and green spaces in the United States have been protected by private, nonprofit groups called
A. urban green space. B. ecologists for conservation. C. debt-for-nature. D. land trusts. E. biosphere conservation.