Answer: D. its ability to resist being scratched by other substances.
Explanation
The degree of hardness in the mineral can be determined by the difficulty of minerals scratching each other or the use of a tool that can penetrate.minerals are very unique which makes it hard to scratch then,the process of scratching is not an easy one because it involves the ability of the mineral to break the bonds that are within it.
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Successful students attend classes regularly. They are on time. They listen and train themselves to pay attention. If they miss a class, they feel obligated to let the teacher know why before class begins, if possible, and their excuses are legitimate and reasonable. They make sure they get all missed assignments (by contacting the teacher or another student), and understand specifically what was covered in class. Successful students take responsibility for themselves and their actions.
A good meeting must always be agenda-oriented, systematic, necessary people should only be the invitees and many more.
<h3>What is a good meeting?</h3>
A good meeting must be systematic, agenda-oriented, positive, and energetic. although it's very difficult to achieve a good meeting. The participants should be well prepared for the meeting. It should lead to decisions.
The criteria are necessary for every good meeting are:
- should have a detailed agenda
- necessary people should only be the invitees
- the members of the meeting should respect each other.
Therefore, option b aptly describes the criteria for every good meeting.
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