Bissoy.com
Doctors Medicines MCQs Q&A

Which of these statements is correct with reference to soil? i. Topsoil has the maximum amount of humus ii. Sandy soils percolate water faster iii. The loamy soil consists of sand and clay

Which of these statements is correct with reference to soil? i. Topsoil has the maximum amount of humus ii. Sandy soils percolate water faster iii. The loamy soil consists of sand and clay Correct Answer Both i and ii

  • Humus is formed from dead and decayed plant and animal matter. It is found in the topsoil, i.e. A horizon of the soil profile.
  • Percolation of water is faster in sandy soils.
  • The loamy soil consists of sand, silt, and clay.

Related Questions

Consider the following statements.  A. Loamy soils are the most aerated soil.  B. Clayey soil has the most water hold capacity.  C. Most amount of fine particles can be observed in sandy soil.  D. Loamy soil consists of sand, clay, and silt.  Which among the following statements are correct?
Which of the following are the components of loamy soils? I. Red soil II. Clay soil III. Alluvial soil IV. Silt soil V. Sandy soil
Which of the following are the components of loamy soils?
I. Red soil
II. Clay soil
III. Alluvial soil
IV. Silt soil
V. Sandy soil
Consider the following statements and choose the correct answer:
1. Soil gets heat energy from different sources such as solar radiation, decomposing organic matter and heat formed in the interior of earth
2. The temperature of soil is not affected by its colour and altitude of the land
3. Black soils absorb more heat than white soils
4. Sandy soils absorb more heat and radiate it out quickly at night than clay or loam soils
Which of the statements given are correct about the soils of India :
1. High temperature during most of the year retards formation of humus
2. Soils which have humus require regular application of chemical fertilizers to remove nitrogen deficiency
3. Titanium salts in basalt impart black, colour to the soils of the Indian plateau
4. Red soils are confined to the peripheral areas of the Indian plateau
The critical reasoning question is based on a short argument, a set of statements, or a plan of action. For each question, select the best answer of the choices given and explain why the chosen answer is the right fit. Passage: According to a study salamanders prey consists of leaf-eating insects that feed on fallen leaves and convert the carbon present in the leaves into methane which is released in the atmosphere. And if there are not enough insects left to eat the fallen leaves, the leaves remain intact and are transformed into humus. Statements: (A)Larger presence of salamander will lead to the production of a larger amount of humus. (B)All insects only eat leaves and nothing else. (C)Soil rich in humus is good. Question: Which of the above three statements could be inferred from the passage?
A teacher is trying to introduce her class VII students to different kinds of soil. She begins by introducing the names of three kinds of soil i.e. sandy soils, clayey soil and loamy soil. She explains the properties of each soil in term of its particulate nature. She then demonstrates one sample of each kind of soil and shows the students the difference in percolation rate of an examples. How would you evaluate this approach from an inquiry oriented perspective?
Consider the following statements and state what is not true of the Alluvial Soils? (a) Alluvial soils are the most widely spread soils. (b) Alluvial soils as a whole are very fertile. (c) On the basis of their age they are classified into two - old: Bangar and new: khadar. (d) Khadar soils are more fertile than Bangar (e) Alluvial soils contain an adequate proportion of potash, phosphoric acid and lime (f) Alluvial soils are ideal for sugarcane, paddy, wheat and pulses. 
Read the given paragraph carefully and answer the following question.  Soil erosion is a naturally occurring process that affects all land forms. It refers to the wearing away of a field's topsoil by natural physical forces of water and wind. Topsoil, which is high in organic matter, fertility and soil life, majorly contributes to the growth of crops. Soil erosion reduces cropland productivity and causes the pollution of watercourses, weltlands and lakes. Which of the following options does NOT show steps taken to prevent soil erosion?
The pie chart given below shows the amount spent by a boy on the purchase of six different items. The total amount spent on all these six items is Rs. 54000. The amount spent on a specific item is represented as a degree with reference to the total amount spent on all these six items. Which of the following statement(s) is/are correct? I. The amount spent on article A is Rs.900 less than the amount spent on article B. II. The amount spent on article C is Rs 2400 more than the amount spent on article D. III. The ratio of the amount spent on article B to the amount spent on article E is 4 : 1.