LANDFORMS AND THEIR EVOLUTION

Question 1

type of plain forming as a result of

stream erosion is called a

Answer 1

peneplain

Question 2

The divides between drainage basins are likewise lowered until they are almost completely flattened leaving finally, a lowland of faint relief with some low resistant remnants called

Answer 2

monadnocks

Question 3

aterfalls and rapids may exist in this stage

Answer 3

youth

Question 4

Streams divides are broad and flat with marshes, swamp and lakes in this stage

Answer 4

youth

Question 5

Erosional landforms by running water

Answer 5

Valleys, Potholes and Plunge Pools ,Incised or Entrenched Meanders, River Terraces

Question 6

DEPOSITIONAL LANDFORMS

Answer 6

Alluvial Fans, Deltas Floodplains, Natural Levees and Point Bars Meanders Braided Channels

Question 7

a deep valley with very steep to straight sides

Answer 7

gorge

Question 8

steep step-like side slope

Answer 8

Canyon

Question 9

But very deep and wide meandersb can also be found cut in hard rocks

Answer 9

Incised or Entrenched Meanders

Question 10

basically products of erosion as they result due to vertical erosion by the stream into its own depositional floodplain

Answer 10

River Terraces

Question 11

This load becomes too heavyn for the streams to be carried over gentler gradients and gets dumped and spread as a broad low to high cone shaped deposit called

Answer 11

alluvial fan

Question 12

In meanders there is active

deposition along the

Answer 12

convex bank

Question 13

In meanders there is active undercutting along the

Answer 13

concave bank.

Question 14

Any limestone or dolomitic region
showing typical landforms produced by the
action of groundwater through the processes
of solution and deposition is called

Answer 14

Karst

topography

Question 15

EROSIONAL LANDFORMS for groundwater

Answer 15

Pools, Sinkholes, Lapies and

Limestone Pavements, caves

Question 16

Depositional Landforms for groundwater

Answer 16

Stalactites, Stalagmites and Pillars

Question 17

Small to medium sized round to sub-rounded

shallow depressions called

Answer 17

swallow holes

Question 18

is an opening more or less circular at the top and funnel-shapped towards nthe bottom

Answer 18

Sink hole

Question 19

The term is sometimes used to refer the collapse sink

Answer 19

doline

Question 20

when sink holes and doline join , long,

narrow to wide trenches called

Answer 20

valley sinks or Uvalas form.

Question 21

rise up from the floor of the caves.

Answer 21

Stalagmites

Question 22

Alkapuri glacier

feeds waters to river.

Answer 22

Alakananda river.

Question 23

EROSIONAL LANDFORMS due to glaciers

Answer 23

Cirque, Horns and Serrated Ridges, Glacial Valleys/Troughs, aretes

Question 24

Depositional Landforms due to glaciers

Answer 24

Eskers, Moraines , Outwash Plains, Drumlins

Question 25

They are deep, long and wide troughs or basins with very steep concave to vertically dropping high walls at its head as well as sides

Answer 25

Cirque

Question 26

lake of watercan be seen quite often within the cirques after the glacier disappears

Answer 26

tarn lakes

Question 27

trough-like and U-shaped with broad floors and relatively smooth, and steep sides.

Answer 27

Glacial Valleys

Question 28

Very deep glacial troughs filled with sea water and making up shorelines (in high latitudes) are called

Answer 28

fjords/fiords.

Question 29

The unassorted coarse and fine debris dropped | by the melting glaciers is called

Answer 29

glacial till

Question 30

They are long ridges of deposits of glacial til

Answer 30

Moraines

Question 31

Very coarse materials like boulders and blocks along with some minor fractions of rock debris carried into this stream settle in the valley of ice beneath the glacier and after the ice melts can be found as a sinuous ridge called

Answer 31

esker

Question 32

smooth oval shaped ridge-like features composed mainly of glacial till with some masses of gravel and sand.

Answer 32

Drumlins

Question 33

give an indication of direction of | glacier movement

Answer 33

Drumlins

Question 34

Stoss and tail are parts of

Answer 34

Drumlins

Question 35

high, rocky coasts (

Answer 35

(submerged coasts);

Question 36

low, smooth and gently sloping | sedimentary coasts

Answer 36

(emerged coasts

Question 37

Erosion features dominate in

Answer 37

(submerged coasts);

Question 38

Marshes and swaps are bound along

Answer 38

(emerged coasts

Question 39

depositional features dominate in

Answer 39

(emerged coasts

Question 40

EROSIONAL LANDFORMS due to wave current

Answer 40

Cliffs, Terraces, Caves and Stacks

Question 41

DEPOSITIONAL LANDFORMS due to wave current

Answer 41

Beaches and Dunes, Bars, Barriers and Spits

Question 42

Platforms occurring at elevations above the | average height of waves is called

Answer 42

a wave-cut terrace.

Question 43

Deflation includes

Answer 43

lifting and removal of dust and smaller particles from the surface of rocks

Question 44

EROSIONAL LANDFORMS due to wind

Answer 44

Pediments and Pediplains, Playas, Deflation Hollows and Caves, mushroom table and pedestal rocks,

Question 45

Gently inclined rocky floors close to the mountains at their foot with or without a thin cover of debris, are called

Answer 45

pediments

Question 46

inselberg is a | .

Answer 46

remnant of the mountain

Question 47

The playab plain covered up by salts is called

Answer 47

alkali flats

Question 48

Crescent shaped dunes called with the points or wings directed away from wind direction

Answer 48

barchans

Question 49

Parabolic dunes form when n

Answer 49

sandy surfaces are partially covered | with vegetation are are opposite of barchans

Question 50

Longitudinal dunes form when

Answer 50

supply of sand is poor and wind | direction is constant

Question 51

These dunes form when the wind direction is constant and the source of sand is an elongated feature at right angles to the wind direction.

Answer 51

Transverse dunes