Sci-Five | The Hindu Science Quiz: On sand and sandstorms
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How are sand dunes shaped?
- By volcanic exercise
- By glaciers shifting throughout the land
- By sturdy winds blowing sand into piles
- By rivers depositing sediment
Sand dunes are created when wind deposits sand on prime of one another till a small mound begins to type
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Which compound makes up sand?
- Silica
- Sodium Chloride
- Magnesium
- Aluminium Oxide
Sand is often manufactured from Silica. Also referred to as silicon dioxide (SiO2), it’s the compound that makes up many of the earth’s crust.
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What is a sandstorm?
- A heavy rainstorm with sand combined in
- A swirling mass of sand and mud carried by sturdy winds
- A cloud formation made solely of sand
- A sort of sand sculpture created by artists
Sandstorm, additionally referred to as mud storm, is a meteorological phenomenon frequent in arid and semi-arid areas. They come up when a gust entrance or different sturdy wind blows unfastened sand and grime from a dry floor.
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Which desert is known for its giant sand dunes referred to as “singing dunes”?
- Sahara Desert
- Gobi Desert
- Arabian Desert
- Namib Desert
Namib desert’s singing sand can be referred to as whistling sand, barking sand or singing dune, The sound emission is attributable to wind passing over dunes or by strolling on the sand.
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What is the proper time period for a mini sandstorm that types on a seaside and strikes inland?
- Desertification
- Dust satan
- Haboob
- Sand spout
Sand spout is a pillar of sand, related in look to a waterspout, raised by the sturdy inflowing and ascending currents of a whirlwind of a small radius.
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