Healthy soil depends on a. the size of rock particles b. oxygen content c. moisture content d. all of the above

The correct answer is (d). All of the above.

The health of the soil depends on several factors such as the size of rock, which determines the water holding capacity of soil. The soil having smaller rock particles holds more water as compared to the soil having larger rock particles. The more the oxygen content of the soil, the better will be the growth of plants. The roots of the plants require oxygen for various functions. The moisture content enables the growth of healthy microorganism that is required for humification in the soil to increase the soil health.

hi, natural selection of the peppered moth during the industrial revolution in 19th-century england is an example of an outlier in the study of evolution. during this time, pollution from factories filled the forests, coating trees in a layer of soot—turning white trees black

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