Coastal Geomorphology

Options:

1. Weathering of coastal rocks
2. Slumping and landslides
3. Tectonic movements such as upwarping, downwarping, upliftment, subsidence, folding, and faulting
4. None of the above

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Options:

1. Swash waves
2. Breaker waves
3. Tidal waves
4. Undertow waves

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Options:

1. High
2. Low
3. Moderate
4. Irregular

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Options:

1. Bays and lagoons
2. Bars and spits
3. Caves and headlands
4. Arch and stacks

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Options:

1. Youth
2. Maturity
3. Old stage
4. None of the above

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Options:

1. They are destroyed
2. They become more extensive
3. They are unaffected
4. They disappear gradually

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Options:

1. They increase
2. They decrease significantly
3. They remain constant
4. They become more irregular

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Options:

1. Due to upliftment of coastland in tectonic events or due to fall in sea level because of subsidence of oceanic floor.
2. Due to the melting of ice caps or due to the impact of asteroids.
3. Due to volcanic eruptions or due to changes in the Earth’s magnetic fiel
4. Due to changes in ocean currents or due to the formation of underwater mountains.

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Options:

1. Lagoons
2. Tidal inlets
3. Notches
4. Offshore bars

Correct Answer

Options:

1. Offshore bars migrate towards the coast, and lagoons become narrower.
2. Offshore bars disappear completely, and the coastline becomes simple and straight.
3. Tidal inlets become wider, and swamps and marshes disappear.
4. The depth of water decreases, and the slope of the coast becomes gentle.

Correct Answer

Options:

1. Most coastal irregularities are obliterated, and the coastline becomes simple and straight.
2. Lagoons become wider, and the depth of water decreases.
3. Offshore bars become taller, and tidal inlets become narrower.
4. Swamps and marshes become more abundant, and the slope of the coast becomes gentle.

Correct Answer