Question

Match the following

a) Foot hill - vandal visirigal
b) Rock fragments - wider plain valley
c) Levis - the place where River joins the sea
d) Plunge - high bunds
e) V shaped valley - Erosion​

Answer 1

Complete question:

"Match the following

1. V-shaped valley  a) Wind

2. Beaches          b) River

3. U-shaped valley  c) Sea waves

4. Sand dunes  d)Glaciers"

Answer:

1-b, 2-c, 3-d, 4-a

Explanation:

• A V-shaped valley is a narrow valley with steeply sloping sides that resemble the letter "V" in cross-section. They are formed by a powerful stream carved into the rock over time through a process called downcut.
• Beaches are formed when waves deposit sand and gravel along the coastline. And pebbles. Over time, the waves are rolling them, so they wear smoothly. Rocks usually reflect the local geology.
• U-shaped valleys are formed by glacier erosion. Glacial action develops in established V-shaped river valleys, where ice erodes the surrounding rocks, creating "U" -shaped valleys with flat bottoms and steep sides. The movement of glaciers is driven by gravity.
• Dunes are wind-carved mountains of sand, usually on beaches and deserts. Dunes are formed when the wind blows sand into the protected area behind the obstacle. As the dunes grow the grains of sand accumulate. All dunes have windward and gliding surfaces.

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Answer 2

Complete question:

1. V-shaped valley      a) Wind
2. Beaches                  b) River
3. U-shaped valley     c) Sea waves
4. Sand dunes            d) Glaciers

Answer:

"1-b, 2-c, 3-d, 4-a"

1. V-shaped valley   - River
2. Beaches                - Sea waves
3. U-shaped valley    - Glaciers
4. Sand dunes          - wind

Explanation:

• A narrow valley with steeply sloping sides that looks like the letter "V" in cross-section is known as a V-shaped valley. Through a process known as down-cut, a strong stream gradually chiselled through the rock to create them.
• Sand and gravel are left behind by waves along the coast, creating beaches. and stones. They gradually wear gently because the waves are rolling them. Typically, rocks represent the regional geology.
• Glacier erosion produces valleys with a U shape. Ice erodes the surrounding rocks in established V-shaped river valleys, forming "U"-shaped valleys with flat bottoms and steep sides. Gravity is what causes glaciers to move.
• Sand mountains known as dunes are typically found on beaches and in deserts. Sand is blown into the sheltered region behind the obstruction by the wind, which then forms dunes. Sand grains build up as the dunes expand. All dunes have surfaces that are windward and gliding.

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