Correct: top soil is rich in humus and contains rotten plants and animals, the horizontal layers of soils are called soil horizons, subsoil is made of silt,clay, sand and some nutrients such as soluble minerals and iron oxides., Rock fragments lies between the subsoil and parent bedrock, Bed rock is called as parent rock, If we cut vertically into the earth,the different layers become visible., Incorrect: The sub soil is found above the topsoil., Rainwater is not collected in the subsoil, Bed rock is the last layer in the soil profile., Bed rock is liquid layer of un weathered rock, In rock fragments layer we can see more plants and animals,

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