SCIENCE
ECOLOGY
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
Sandy soil does not hold enough water.
|
|
|
Air cannot pass through sandy soil.
|
|
|
Roots cannot easily push through sandy soil.
|
|
|
Sandy soil has too many nutrients.
|
Detailed explanation-1: -Sandy soil does not hold enough water. Air cannot pass through sandy soil. Roots cannot easily push through sandy soil.
Detailed explanation-2: -A few bad things: Since sandy soils are made up of well…sand you will find that it doesn’t hold water or nutrients very well. Sand is composed of silica, usually quartz crystals, and these have relatively no ability to hold onto nutrients and little ability to hold on to water.
Detailed explanation-3: -Particles of clay fit tightly, and have very little pore space to hold air and water. On the other hand, sand on a beach has such a large amount of large pores that it drains too quickly to grow most plants in.
Detailed explanation-4: -Soil Porosity Even though the individual soil particles and pores are larger in sands, the porosity or total pore volume is less in sands than in silty or clayey soils. This characteristic causes the bulk density to be higher for sands. Water can be held tighter in small pores than in large pores.
Detailed explanation-5: -Sandy soils contain less amount of silt so they hold less amount of water when compared to other types of soils.