Classify the following as chemical or physical changes: Cutting of trees.
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Solution
Physical change :
A change in which a substance undergoes a change in its physical properties i,e shape, size, color, state, or appearance of the substance change is called a physical change, which is generally reversible in nature.
In these physical changes, the chemical composition remains intact and no new substance gets formed.
Chemical change :
A change in which the chemical properties of a substance get altered is called a chemical change.
The chemical change is also called as a chemical reaction which is generally Irreversible in nature.
In a chemical change, one or more new substances always get formed during the reaction.
Cutting of trees :
Cutting of trees is an example of physical change as there no are new products that get formed in the given reaction.
In the Cutting of a tree, it will produce woods, which have the same chemical composition as the tree.