First one is static
Second one is round
Third one is flat
Last one is dynamic
<h2>
Answer:</h2>
The answer is:
C. Mass
Explanation:
The physical changes of a substance are those that change its physical properties. Physical properties include attributes such as color, gloss, malleability, shape, texture, or condition.
An example of a social norm is that most people expect a 15 per cent tip.
<h3>What is a Social Norm?</h3>
Social norms refers to shared standards of acceptable behavior by groups.
Social norms can occur both in formal and informal settings that govern the behavior of members of a society.
Norms become social when they are accepted by a large number of people in a society.
Learn more about social Norms at brainly.com/question/1278457
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C is the answer I know for sure