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100

What is the meaning of mountain

A large elevation of the earth surface rising abruptly from surrounding a large steep hill.

100

glacier

a slowly moving mass or river of ice formed by the accumulation and compaction of snow on mountains or near the poles.


100

mesa

an isolated flat-topped hill with steep sides, found in landscapes with horizontal strata.

100

reservoir

a large natural or artificial lake used as a source of water supply.

100

peninsula

a piece of land almost surrounded by water or projecting out into a body of water.

200

what  does archipelago  mean


A sea or stretch of water containing many island.

200

island

a piece of land surrounded by water.

200

oasis

 fertile spot in a desert where water is found.

200

peak

the pointed top of a mountain.

200

plateau

an area of relatively level high ground

300

 what is canyon 

a deep gorge, typically one with a river flowing through it.

300

marsh

an area of low-lying land that is flooded in wet seasons or at high tide, and typically remains waterlogged at all times.

300

strait

a narrow passage of water connecting two seas or two large areas of water.

300

valley

a low area of land between hills or mountains, typically with a river or stream flowing through it.

300

gulf

a deep inlet of the sea almost surrounded by land, with a narrow mouth.

400

cape


a part of a longer coat or cloak that falls loosely over the shoulders from the neckband.

400

crater

a large, bowl-shaped cavity in the ground or on the surface of a planet or the moon, typically one caused by an explosion or the impact of a meteorite or other celestial body.

400

tundra

  1.  vast, flat, treeless Arctic region of Europe, Asia, and North America in which the subsoil is permanently frozen.


400

ocean

a very large expanse of sea, in particular, each of the main areas into which the sea is divided geographically.

400

canal

an artificial waterway constructed to allow the passage of boats or ships inland or to convey water for irrigation.

500

delta

the fourth (usually fourth-brightest) star in a constellation.

500

river

a large natural stream of water flowing in a channel to the sea, a lake, or another such stream

500

dune

a mound or ridge of sand or other loose sediment formed by the wind, especially on the sea coast or in a desert.

500

isthmus

a narrow strip of land with sea on either side, forming a link between two larger areas of land.

500

coastal region

where interaction of the sea and land processes occurs.

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