Which event is most likely to cause rejuvenation of a stream? A. During a period of thaw, a frozen stream begins to flow again
B. During a landslide, a natural dam forms on the stream
C. During an earthquake, the stream is lifted to a high elevation
D. During a hurricane, heavy rainfall causes the stream to flood

the scientific method.

answer:

convection currents in the magma drive plate tectonics. heat generated from the radioactive decay of elements deep in the interior of the earth creates magma (molten rock) in the aesthenosphere. the aesthenosphere (70 ~ 250 km) is part of the mantle, the middle sphere of the earth that extends to 2900 km.

ecological efficiency: % of usable energy transferred as

biomass from one trophic level to the next typical is 10% efficient (90% of

energy is lost),is diagramed as the pyramid of energy flow. then osprey eagle

are tertiary consumer and the shrimp are primary consumer, so to balance

mass of shrimp (1/0.1) / 0.1 = 100 kg