Q.How are living organisms dependent on the soil? Are organisms that live in water totally independent of soil as a resource?
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Man and animal obtain their food from the plants. (cereals, vegetables, grass, etc.) growing on the soil. These plants obtain their food from the nutrients found in soil. In addition, soil also contains various micro-organisms which derive their food from the soil. Thus, all living
organisms depend on soil for their survival.
Soil is essential for all living organisms whether they are aquatic or terrestrial. Soil plays important role in biogeochemical cycle which is a main source of recycling of nutrients from atmosphere to soil and then to water.
Aquatic plants obtain their nutrients from the bottom of that water body and these aquatic plants are source of food for the aquatic animals. In this way soil is essential for the aquatic organisms as well.
Living organisms are dependent on the soil in the following ways:
(i) All the plants (even acquatic), on which almost all the organisms depend directly or indirectly for food, grow in the soil, which provides them with nutrients and water for development.
(ii) Soil also supports the very existence of forests, which provide us with wood, building material, fibre, medicinal plants. Forests arc also natural habitat for a number animal species.
(iii) A number of insects and animals make their homes in the soil.
(iv) The organisms that live in water are not totally independent of soil as a resource. The mineral nutrients are present in water in the dissolved form. But their recycling takes place with the help of decomposers that are present in soil. Water bodies like rivers get supply of minerals from the soil.
organisms depend on soil for their survival.
Soil is essential for all living organisms whether they are aquatic or terrestrial. Soil plays important role in biogeochemical cycle which is a main source of recycling of nutrients from atmosphere to soil and then to water.
Aquatic plants obtain their nutrients from the bottom of that water body and these aquatic plants are source of food for the aquatic animals. In this way soil is essential for the aquatic organisms as well.
Living organisms are dependent on the soil in the following ways:
(i) All the plants (even acquatic), on which almost all the organisms depend directly or indirectly for food, grow in the soil, which provides them with nutrients and water for development.
(ii) Soil also supports the very existence of forests, which provide us with wood, building material, fibre, medicinal plants. Forests arc also natural habitat for a number animal species.
(iii) A number of insects and animals make their homes in the soil.
(iv) The organisms that live in water are not totally independent of soil as a resource. The mineral nutrients are present in water in the dissolved form. But their recycling takes place with the help of decomposers that are present in soil. Water bodies like rivers get supply of minerals from the soil.
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