Environmental & Atmospheric Sciences

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About the Environmental & Atmospheric Sciences category [Environmental & Atmospheric Sciences] (1)
In order to control flooding, levees are frequently constructed along the banks of rivers to confine flow to the channel. Given this, what happens to the flow velocity and erosive power of the stream during a flood, before the water overflows the levee? [General Geography] (2)
The construction of a dam across a river is likely to cause ______ upstream of the dam, and _______ downstream. [General Geography] (2)
An oxbow lake results from: [General Geography] (2)
Rivers shape the landscape by all of the following EXCEPT: [General Geography] (2)
A cliff along the coast line may be the result of which of the following processes: [General Geography] (3)
Wave erosion is most intense along: [Environmental Geography & Geology] (2)
About the Resources & Conservation category [Resources & Conservation] (1)
When might you be able to see a halo around your head, and what would cause this? [General Geography] (3)
Compare a corona of the moon to dropping a small stone into a pond [General Geography] (3)
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.​ [General Geography] (3)
Explain the following rhyme: [General Geography] (3)
What is a tangent arc in relation to a halo?​ [General Geography] (3)
Describe how, when, and where Sun pillars are formed [General Geography] (3)
What atmospheric conditions are necessary for an inferior mirage? A superior mirage?​ [General Geography] (3)
Why do stars “twinkle”? [General Geography] (3)
Describe the double meaning of the expression “once in a blue moon.”​ [General Geography] (3)
How can volcanic eruptions cause red sunsets?​ [General Geography] (3)
Explain the difference between crepuscular and anticrepuscular rays [General Geography] (3)
What can make a setting (or rising) Sun appear red? [General Geography] (3)
Explain why the sky is blue during the day and black at night [General Geography] (3)
Why does the Sun usually appear white to the human eye? How do stars that are cooler, hotter, and about the same temperature compare to the Sun? [General Geography] (3)
How does the human eye perceive light? What would happen if humans only had rod-type receptors? [General Geography] (3)
When an aircraft flies above a cloud layer composed of water droplets less than 50 µm in diameter, a set of colored rings, called the ____________________, may appear around the shadow of the aircraft [General Geography] (3)
Sundogs are caused by ____________________ of sunlight through ice crystals [General Geography] (3)
A ring of light encircling and extending outward from the Sun or Moon is called a(n) ____________________ [General Geography] (3)
____________________ mirages occur when the air near the ground is much warmer than the air above, so objects not only appear to be lower than they really are, but also (often) inverted [General Geography] (3)
Atmospheric mirages are created by light passing through and being ____________________ by air layers of different densities [General Geography] (3)
____________________ is the name given to the time after sunset (and immediately before sunrise) when the sky remains illuminated [General Geography] (3)
When a star appears to twinkle or flicker, it is a condition called ____________________ [General Geography] (3)