Provide an explanation for why, in effect, each of us has a personal rainbow to enjoy, even if more than one person is standing next to one another when a rainbow appears.?
What will be the ideal response?
ANSWER: As you look at a rainbow, keep in mind that only one ray of light is able to enter your eye from each drop. Every time you move, whether it be up, down, or sideways, the rainbow moves with you. The reason why this happens is that, with every movement, light from different raindrops enters your eye. The bow you see is not exactly the same rainbow that the person standing next to you sees. In effect, each of us has a personal rainbow to ponder and enjoy!
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Three types of resources are used to produce goods and services. They are ____________________, ____________________ and ____________________.
Fill in the blank(s) with the appropriate word(s).
Which of the following physical properties would you expect for krypton (Kr)?
A. hard B. conducts electricity C. shiny D. brittle E. a gas at room temperature
Which of the following accounts for the flow of oxygen into the alveoli?
A) Hemoglobin transports the O2 into the alveoli. B) Myoglobin transports the O2 into the alveoli. C) The O2 pressure in the alveoli is higher than that in the inhaled air. D) The O2 pressure in the alveoli is lower than that in the inhaled air.
Which of the following is not a main glacial characteristic that any satisfactory theory of ice age causes must account for?
A) Concurrent development of pluvial conditions in dryland areas B) Multiple cycles of advance and retreat C) Eventual total deglaciation D) The simultaneous but non-uniform accumulation of ice masses in the Eastern and Western Hemispheres E) How snow transforms into glacial ice