Soil Science - Study Mode
[#436] Movement of micronutrient mostly occurs through
Correct Answer
(A) Diffusion
Explanation
Solution: The movement of micronutrients from one cell to another cell or within the cell mostly occurs through the process of Diffusion. Diffusion is the process resulting from the random motion of molecules by which there is a net flow of matter from a region of high concentration to a region of low concentration.
[#437] . . . . . . . . nitrogen present is the soil air.
Correct Answer
(A) 79.2%
Explanation
Solution: The soil air contains several gases of which nitrogen, oxygen, carbon dioxide and water vapor are the most important. Soil air is present in the pores or cavities present in between the loosely bound soil particles. Soil sir constantly moves from the soil pores into the atmosphere and from the atmosphere into the pore spaces. 79.2% of nitrogen is present in the soil air, it percentage is more than the atmospheric air.
[#438] 8-bit images having PIXEL value in the range between
Correct Answer
(D) 0-255
Explanation
Solution: 8-bit colour graphics are a method of storing image information in a computer's memory or a memory file so that each pixel is represented by 8-bits (1 byte). The maximum number of colours that can be displayed at any one time is 256. 8-bit images having PIXEL value in the range between 0-255.
[#439] Split application of K is useful in high rainfall areas to save on
Correct Answer
(C) Leaching
Explanation
Solution: Split application refers to the utilization of a sequence of two or more nutrient applications, separated by approximately three weeks or more, to a single crop to improve nutrient uptake efficiency. Split application of K (Potassium) is useful in high rainfall areas to save on Leaching . Leaching makes the nutrients lost from the top layer by percolation or heavy rain.
[#440] In soil taxonomy, Great group is defined largely on the basis of
Correct Answer
(A) Diagonstic surface horizon
Explanation
Solution: In soil taxonomy, the Great group is defined largely based on the Diagnostic surface horizon . Soil taxonomy is a morphogenetic soil classification system using diagnostic horizons, soil moisture or temperature regimes, and features to infer pathways of soil genesis and formation. It employs a unique mnemonic system based on Greek, Latin or other root words for assigning names to taxonomic classes.