Matter is anything with mass and weight and volume. anything that occupies space
It can be a technique to shorten or make it still at the point of conversation and avoid unrelated issues or situation. It also makes the discussion brief and concise. This provides other people to give their own opinion at a given time. There also might be an allotted time for each people.
Answer: Racial groups
Explanation:
A race is based on an idea that people are divided into distinct groups based on their shared inherited physical features and shared social qualities. It is also based on visual characteristics such as skin color , cranial and facial features or even type of hair
The fix the machine invention