A small rock falling from a cliff is an example of a mechanical process. This event involves the physical movement of the rock due to the force of gravity, rather than any chemical change or reaction. The rock's structure and composition remain unchanged as it falls.
I consider that this is a physical process.
Erosion caused by wind, water, ice, and chemical processes can gradually wear away solid rock on a cliff over time. These natural forces break down the rock into smaller particles, eventually causing the cliff to erode and change in shape.
Mechanical digestion is not considered a chemical change. Mechanical digestion involves physically breaking down food into smaller pieces through chewing and mixing with digestive juices, whereas chemical digestion involves enzymes breaking down macromolecules into smaller molecules.
The smallest cliff is generally considered to be a small escarpment or rock face that is only a few meters high. Cliff height is subjective and can vary depending on the context and location.
A falling tree
chemical ----------- I consider that this is a physical process.
I consider that this is a physical process.
The small intestine completes the process of chemical digestion.
chemical
chemical
Small chunks are always falling from chalk cliffs.
chemical break down
Yes, in part. Chemical digestion occurs in the mouth (saliva), stomach (gastric acid) and small intestine. The nutrients are mostly absorbed in the walls (lining) of the small intestine.
what is responsible for chemical digestion in earthworms
The mouth is the beginning of both mechanical and chemical digestion. Chewing breaks the food into smaller pieces and the saliva wets the food but also adds an enzyme called amylase that begins the digestion of carbohydrates.
digestion
Chemical and mechanical ingestion take place in the mouth. Chemical and mechanical digestion also take place in the stomach. Chemical digestion takes place in the small intestine.Ingestion, digestion then absorption.In the mouth, both chemical digestion and mechanical digestion happen. The mechanical part is your teeth crushing the food into smaller pieces. The chemical part is when the salivary glands give off a special fluid that contains enzymes. When food enters the stomach, an enzyme is released that helps to digest food chemicaly. The muscles in the stomach also digest food mechanicly. Lastly, the small intestine completes the chemical and mechanical digestion of food. The small intestine takes out all the useful matirial and sends it to the cells as tiny molecules that the cells use in cellular resparation.Baisicly, they all use chemical and mechanical digestion.