Question

Answer the following questions in about 150 words.
(ii) Limestones behave differently in humid and arid climates. Why? What is
the dominant and almost exclusive geomorphic process in limestone areas
and what are its results?

Answer 1

Answer:

Limestones behave differently in humid and arid climates because there is change in climate. In humid climate, surface water percolates in the limestone rocks. ... Limestone does not suffer much solution, erosion, and chemical reaction in dry climate due to lack of water.The most dominant and almost exclusive type of geomorphic process in limestone areas is that of processes of solution and deposition by the action of the groundwater. The erosional landforms produced by the action of the groundwater are pools, sinkholes, lapies and limestone pavements.

Explanation:

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Answer 2

Limestones behave differently due to the variations in the climate.

• Water percolates in the limestone rocks in humid climatic atmosphere.
• The underground water then flows horizontally, through the bedding planes and joints. Water downstream and horizontal movement erodes the rocks.
• Surfacwater and groundwater create a range of landforms through the chemical solution cycle and the precipitation deposition.
• Limestone does not undergo much deterioration and chemical reaction due to lack of water in dry climatic conditions.
• The depositional landforms in the limestone areas are the pillars, stalctites and stalagmites.