22. Give reasons.
a) Soil is not a mineral
b) Minerals are called natural substances.
Answers
Explanation:
(a) Poor soil is either too heavy (clay soil which holds nutrients and water but doesn't drain well, and can be hard for the plant roots to push through), or too light (sandy soil which drains very well, but means water and nutrients can just wash away). that is why soil is not a mineral.
(b) Minerals are substances that are formed naturally in the Earth. They are the building blocks of rocks. Minerals are usually solid, inorganic, have a crystal structure, and form naturally by geological processes. ... A mineral can be made of single chemical element or more usually a compound.
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Explanation:
a) Poor soil is either too heavy (clay soil which holds nutrients and water but doesn't drain well, and can be hard for the plant roots to push through), or too light (sandy soil which drains very well, but means water and nutrients can just wash away). that is why soil is not a mineral.
b) Minerals are solid substances that are present in nature and can be made of one element or more elements combined together (chemical compounds). ... They are called native elements. Instead, ordinary kitchen salt is a chemical compound that is called rock salt, which is a mineral formed of sodium and chlorine ions.
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