Question

please give me a answer fast​

Answer 1

Answer:

mark me brainliest

Explanation:

changes that are beneficial to human kind is called useful changes

changes that are harmful to human beings is called harmful changes

Answer 2

Useful and harmful changes: Useful changes are also called desirable changes. Examples: The formation of curd from milk, and the decay of cow dung and leaves to form manure, etc,. There are also some changes that are not useful to us and can cause us harm. They are called harmful or undesirable changes.