Individual members of a feeding population in a food chain are generally ________ in size and ________ numerous than their prey
A) larger; less
B) larger; more
C) smaller; less
D) smaller; more
A
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Although sea level is rising worldwide, the amount of rise varies by location. What two factors influence the amount of sea level rise at a local scale?
A)rate of uplift or subsidence and volume of water in oceans B)slope of coastal area and ocean temperature C)presence of barrier islands and rate of uplift or subsidence D)presence of estuaries and volume of water in oceans E)presence of barrier islands and slope of coastal area
Which of the below correctly describes the ice in a mountain glacier?
A) never stops moving downhill B) moves downhill only during times of high temperature C) moves downhill when snow accumulation exceeds ablation D) On the average, it moves downhill once every hundred years. E) never stops moving uphill
Why does magma rise toward the Earth's surface?
A) because it is a liquid B) because it is hot C) because it is immiscible and cannot combine with the material around it D) because it is less dense than the material around it
Which of the following statements best describes losing streams?
A. common in arid regions where groundwater flows into streams. B. common in arid regions where some of the stream water flows into the groundwater system. C. common in humid regions where groundwater flows into streams. D. common in humid regions where some of the stream water flows into the groundwater system.