The ____ in the human eye allow(s) for the perception of colors in the visible light spectrum
A) iris
B) cones
C) rods
D) cornea
B
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Geologists measure earthquakes on the moment magnitude scale. This scale measures
A. the depth of the earthquake focus. B. the energy released by an earthquake. C. the Richter magnitude of an earthquake. D. the amount that the ground shakes during an earthquake.
In the diagram below, the yellow area represents
A) primary silicate minerals.
B) secondary silicate minerals.
Between 1955 and 2015, the global total fertility rate (TFR) dropped from 5.0 in less-developed countries from 5 to ____.
A. 4.5 B. 3.6 C. 2.5 D. 2.1 E. 1.8
You are helping to plan a dam on a large river that enters the sea. Explain why you should be concerned about the viability of a beach resort 5 kilometers from the mouth of the river
What will be an ideal response?