Food Chain
What will be an ideal response?
A linear series of feeding relationships. As organisms feed on one another, energy is transferred from lower to higher trophic levels.
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A new gravel road is cut into the side of a mountain just north of Anchorage, Alaska. As the snow melts in June, the fine gravel and sand of the disturbed region quickly tumbles into the bottom of nearby streams
The addition of this fine gravel and sand changes the stream by A) decreasing the number of plants and animals that live there. B) decreasing the number of plants but increasing the number of animals that live there. C) increasing the number of plants but decreasing the number of animals that live there. D) increasing the number of plants and animals that live there.
Which of the following is the primary source of energy for the Earth's atmosphere?
A. latent heat released during the formation of hurricanes B. the sun C. erupting volcanoes D. energy from within the Earth
Why does refraction occur?
A) Some wavelengths are more absorbed than other. B) because radiation speed varies with density of the atmosphere C) because the denser the atmosphere is the higher the speed that light is transmitted D) none of these
What is the Law of Superposition?
A. Sedimentary layers become progressively younger with depth B. Sedimentary features are always superimposed on other types of rocks C. Sedimentary layers become progressively older with depth D. Sedimentary rocks are always deposited in horizontal layers