explain the process of breathing in man
explain the importance of soil for plant growth
Answers
Answer:
Process of Breathing:
During breathing we take air in to our lungs through the nose, and then expel it. The taking in of air rich in oxygen in to the body during breathing is called inhalation and giving out of the air rich in carbon dioxide is called exhalation. Both the process takes place regularly during breathing.
Soils support roots and keep them upright for growth. Soils provide plants with essential minerals and nutrients. ... Soils protect plants from erosion and other destructive physical, biological and chemical activity. Soils hold water (moisture) and maintain adequate aeration.
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Answer:
Process of breathing
During breathing we take air in to our lungs through the nose, and then expel it. The taking in of air rich in oxygen in to the body during breathing is called inhalation and giving out of the air rich in carbon dioxide is called exhalation. Both the process takes place regularly during breathing. Therefore, a breath means ‘one inhalation plus one exhalation’.
Importance (Functions) of soils
Soils are essential for life, in the sense that they provide the medium for plant growth, habitat for many insects and other organisms, act as a filtration system for surface water, carbon store and maintenance of atmospheric gases. Let us take a closer look at each of these: