Question

Define Karst , Keratin ,Ionosphere
In short​

Answer 1

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$</p><p>{\mathtt{\huge{\red{\underline{Karst}}}}}$

A type of lamdscape formed from limestone rocks.Karst country includes sleep cliffs and,below the surface caves and tunnels where underground streams have slowly dissolved the soft limestone.

$</p><p>{\mathtt{\huge{\red{\underline{Keratin}}}}}$

A tough protein found in the top layer of skin and also in hair,nails, horns, and hooves.

$</p><p>{\mathtt{\huge{\red{\underline{Ionosphere}}}}}$

The area of Earth's atmosphere through which radio waves can be transmited.

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Answer 2

Answer:

Karst is a topography formed from the dissolution of soluble rocks such as limestone, dolomite, and gypsum. It is characterized by underground drainage.

Keratin is a fibrous protein forming the main structural constituent of hair, feathers, hoofs, claws, horns, etc.

Ionosphere:

the layer of the earth's atmosphere which contains a high concentration of ions and free electrons and is able to reflect radio waves. It lies above the mesosphere and extends from about 80 to 1,000 km above the earth's surface.

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