Wind is a significant geological process that causes erosion and deposition in deserts. Wind can also cause weathering by blowing sand against rocks.  Here are some geological processes that wind can cause: Erosion: Wind can move rock fragments by blowing them around. In deserts, wind erodes the bottom of rocks more than the top, creating mushroom-shaped rocks. Weathering: Wind can cause weathering by blowing sand against rocks. Deposition: Wind can lay down sediment, such as wind-blown silt deposits.  Wind can also create aeolian landforms, which are shaped by wind.  These landforms... Show more

Wind is a significant geological process that causes erosion and deposition in deserts. Wind can also cause weathering by blowing sand against rocks. 

Here are some geological processes that wind can cause:
Erosion: Wind can move rock fragments by blowing them around. In deserts, wind erodes the bottom of rocks more than the top, creating mushroom-shaped rocks.
Weathering: Wind can cause weathering by blowing sand against rocks.
Deposition: Wind can lay down sediment, such as wind-blown silt deposits. 

Wind can also create aeolian landforms, which are shaped by wind. 
These landforms include:
Sand dunes: Mounds of loose sand created by wind.
Loess deposits: Wind-blown silt deposits common along the Mississippi River Valley.
Ventifacts: Rocks that are abraded, pitted, etched, grooved, or polished by wind-driven sand or ice crystals. 

Other geological processes include: Mass-wasting, Transportation. 

The atmosphere protects life on Earth by:
Retaining heat from the sun
Blocking harmful rays of sunlight
Playing a major role in Earth's water cycle
Helping keep the climate on Earth moderate

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Engineering Geology Practice Test: Geological Work of Natural Resources - Atmosphere and Wind

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25 Questions

1. Which of the following facts about Exfoliation is false?

Internal structure of the rock is affectedThe change is accompanied by chemical weatheringIt occurs in thick or layered rocks.It is the phenomenon of peeling off of curved shells from rocks

2. The rock-mineral insoluble in water is ____________

Rock saltGypsumPyriteCalcite

3. Which of the following is reduction?

Addition of oxygenRemoval of hydrogenRemoval of oxygenRemoval of electron

4. The rock which is well polished by wind abrasion is called _____________

Desert pavementsVentifactsYardangsPedestal rock

5. Identify the part labelled as “A” in the below diagram.

Weathered rockParent rockRolled down rockPowdered rock

6. Which of the following about saltation is not true?

It is the process of sediment transport by series of jumpThey are lifted up periodically and for short distancesIn this process the heavier and coarse sediments are lifted upIn this process the light-density particles are carried away

7. Which of the following about weathering is not true?

It is a rapid processChemical decomposition is involvedIt is a natural processMechanical disintegration is involved

8. The main processes which does not come under chemical weathering are ____________

InsolationCarbonationHydration and hydrolysisSolution

9. The type of dune which is short lived is _____________

Transverse dunesBarchansFixed duneSigmoidal

10. The transporting power of wind depends on the shape of the particle.

TrueDon't KnowFalseMaybe

11. The formation of sheets and subsequently joints occurs in which of the following processes?

InsolationUnloadingFlow of waterFrost action

12. What is the change in volume when water freezes?

10% decrease20% decrease20% increase10% increase

13. The type of erosion which involves rubbing, grinding is _____________

AttritionDeflationDeflectionWind abrasion

14. Where can one find the process of exudation occur?

SeashoreWaterfallsPlainsHills

15. The process that is not considered under mechanical weathering is _______

InsolationTemperature variationUnloadingCarbonation

16. Limestone is not easily soluble in pure water but carbonated water dissolves the rock effectively.

MaybeFalseTrueDon't Know

17. The water in an oasis is obtained from which source?

RainWater tableErosion from other placeWater released from adsorption

18. Which of the following is true about Eluvium?

It is associated with weathering of slopesIt is the end product of weathering that happens to lie over and above the parent rockRegolith is not the other name for EluviumIt is that category of end product of weathering that has been moved to some distance after its formation

19. The stress developed in the top layers of the rocks which disintegrate due to repeated variations in temperatures is ________

Shear stressTensile stressBending stressCompressive stress

20. The processes by which Scree deposits are formed are ________

Exposure to sunlightWater movementChemical attackHeaving and rolling

21. The large-scale development of fracturing in confined rock masses occurs under which process?

Frost actionUnfoldingUnloadingInsolation

22. It is said that Sandstone is more resistant to weathering compared to Granite. What is the basic reason behind this phenomenon?

The external outline form of sandstoneSandstone is mainly made of quartzGranite is mainly made of quartzSandstone is harder than granite

23. Identify the pair mismatched.

Hot and humid – Mechanical weathering is predominantHot and dry – Mechanical weathering is predominantCold and humid – Both mechanical and chemical weatheringDry and cold – Neither of them

24. 2KaISi₃O₈ + 2H₂O + CO₂ → Al₂Si₂O₅(OH)₄ + K₂CO₃ + 4SiO₂
Orthoclase + Carbonic acid → ___________ + Pot. Carbonate + Silica
Identify the mineral in the blank space of the equation.

KaoliniteHalloysiteMontmorilloniteIllite

25. Factor not affecting weathering is ____________

Colour of the rockPhysical environmentClimateNature of the rock