Why does sea level change?
What will be an ideal response?
Answer: Isostasy explains why ocean depth correlates with seafloor age: The older the lithosphere, the greater its density, and the lower its surface elevation. Sea-level changes are explained either by changing the volume of seawater or by changing the size of ocean basins that contain the water. Plate tectonics affects global sea level through changes in oceanic lithosphere age. When the global average lithosphere age decreases, the average seafloor elevations increases. This causes sea level to rise so that seawater floods onto continents.
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The scientific method is described by which of the following?
A) a single, definitive linear method for doing science B) a step-by-step guide done a single time during the initial testing of a scientific idea C) the acceptance of supernatural explanations for phenomenon until science proves otherwise D) irreproducible results accepted as theory E) the development of hypotheses that are tested to aid predictions
Which animal has been removed from the U.S. endangered species list?
A. manatees B. American crocodile C. pythons D. California condor E. bald eagles
Which slope composition is the most stable?
A) Unconsolidated sediments B) Rock layers inclined parallel to the slope C) Solid bedrock D) Carbonate rock affected by dissolution
In the language of the food chain, herbivorous animals are called ________
A) the apex B) primary consumers C) tertiary consumers D) secondary consumers E) dominant