What is a dust storm occuring in dry land areas called?
A haboob is a type of intense dust storm carried on an atmospheric gravity current, also known as a weather front. Haboobs occur regularly in dry land area regions throughout the world.
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Why is the ozone hole dangerous?
it speeds up the global warming
it increases UV radiation
it depletes the oxygen (O2)
it disturbs Earth's magnetic field
In which layer of the atmosphere the aurora is created?
In the Troposphere
In the Stratosphere
In the mesosphere
In the Thermosphere
The bright circle around the Sun seen in the picture is known as a halo. What causes it?
refraction of light in ice crystals
refraction in the lens of the eye or lens
refraction of light in water drops
reflections from the water surface