How are living organisms dependent on the soil? Are organisms that live in water totally independent Of soil as a resource ?
Living organisms are dependent on the soil in the following ways : (i) Soil provides a natural habitat for various different organisms (such as bacteria, fungi, algae) which help in improving the quality of the soil. Thus, they maintain the fertility of the soil. (it) Number of insects, animals like rats, rabbits, etc., build their home in the soil. (iii) Earthworms perform all their activities in the soil. They maintain fertility also as their excreta is rich in nitrogen. (iv) Soil provides anchorage and nutrients to the plants for their growth and development. Yes, all organisms that live in water are totally dependent on soil as a resoure : The mineral nutrients are present in water in the dissolved form. But their recycling takes place only with the help Of decomposers which are present in the soil beds. Thus, all water bodies has soil beds which contain decomposers for the recycling of nutrients and to convert them into readily absorbable forms.
