cleaning
Plant roots bind the soil and regolith together.
From the mouth the soil moves to the crop, where it is stored . Behind the crop is a muscular structure called the gizzard. Here, the soil and food are ground. In the intestine, the food is broken down and absored by the blood . Undigested soil and wastes leave the worm through the anus.
The things that absorb light are leaf litter and similar organic stuff. that means that there is more chance that light can be absorbed by organic dominated soil rather than rock or sand. If you remember that soil itself is a combination of rock and organic matter it is easier to remember the answer to your question.
Earthworm populations depend on both physical and chemical properties of the soil, such as soil temperature, moisture, pH, salts, aeration and texture, as well as available food, and the ability of the species to reproduce and disperse. One of the most important environmental factors is ph, but earthworms vary in their preferences. Most earthworms favour neutral to slightly acidic soil. Another important factor in the amount of moisture in the soil as the earthworm requires this to breath.
Earthworms do indeed have mouths. As they burrow through the soil, earthworms ingest the soil through their mouth- soil itself isn't very nutritious, but within the soil particles there are various microorganisms, bacteria and detritus that the earthworms are able to digest. Within the earthworm are two digestive structures that are used to process food: the crop (which is a food storage recepticle) and the gizzard (which is tough and muscular, and is used to grind up the soil particles). Food then passes through a short intestine (where absorption of the nutrients occurs), and out the anus.
alters the landscape
alters the landscape
Removal of nutrients from soil is called leaching
sometimes herbivores are responsible for the removal of soil .how?
It is known as erosion. (What is the meaning of 7?)
Soil macrofauna are all organism in the soil visible to the naked eye.
Leaching in geography refers to the process where minerals or nutrients are removed from soil or rock due to the movement of water through them. This can have an impact on soil fertility and the quality of groundwater.
Yes, soil is a physical feature.
In much the same way as sound is used in music, food is used in cooking, and soil is used in agriculture.
depletion
Excavation
Extraction.