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प्रश्न
Give Reasons:
Chemical weathering is predominant in hot and humid zones.
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उत्तर
- Heat speeds up chemical weathering.
- Minerals can react with oxygen in the atmosphere or water from rain – even occassional rain in arid zones – to change their chemical composition.
- Metallic silicate minerals such as iron containing olivine, oxidize to form hematite, a red coloured iron oxide that coats rocks.
- It is present in desert sands as laterite soil.
- With continuing heat and moisture, hematite hydrates to form a yellow coloured iron oxide, limonite.
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संबंधित प्रश्न
What are the main types of chemical weathering?
Identify the type of weathering from the given description.
The rock rusts.
How do animals and plants assist in weathering?
Name the gases involved in the process of chemical weathering.
Name few well known physical features caused by chemical weathering.
Rewrite the following sentence, choosing the right word from the options given below:
_______ occurs when the water itself combines chemically with some element or mineral.
Distinguish between the following :
Granular Disintegration and Block Disintegration.
Distinguish between the following :
Solution and Hydration
Mixing of water with the atmospheric carbon-di-oxide is known as ______.
Distinguish between
Oxidation and Carbonation
