Which of the following statements will not hold true if a plant is grown in only sand (S), only clay (C) and only humus (H)?
Water availability to the roots will be more in (C) and (H) as compared to (S).
Ability of roots to penetrate (S) and (H) will be low as compared to (C).
Nutrient availability to roots will be less in (S) as compared to (C) and (H).
Oxygen availability to roots will be low in (C) as compared to (S) and (H).
Read the following statements with reference to the soil.
i) Weathering is a very fast process of soil formation.
ii) Percolation of water is faster in sandy soils.
iii) Loamy soil contains only sand and clay.
iv) Topsoil contains the maximum amount of humus.
Choose the correct statements from the above.
Question 18 Top-soil contains the following (a) Humus and living organisms only (b) Humus and soil particles only (c) Humus, living organisms and plants (d) Humus, living organisms and soil particles.
Question 4
Read the following statements with reference to soil.
(i) Weathering is a very fast process of soil formation. (ii) Percolation of water is faster in sandy soils. (iii) Loamy soil contains only sand and clay. (iv) Topsoil contains the maximum amount of humus.
Choose the correct statements from the above (a) (ii) and (iv) (b) (i) and (iii) (c) (ii) and (iii) (d) (i) and (ii)