Answer:
A. They have mass
Explanation:
because if they don’t have mass they can’t exert force :)
B. The work once done by skilled workers was now done by machines and unskilled workers.
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Mass-production techniques and technology called for setting up huge factories with large work force. It created a lot of jobs but due to the division of labor, the skill requirements for a particular job were quite monotonous. Skilled workers were replaced by machines and unskilled machine operators that could perform a single task instead of an array of tasks.
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The answer is Because many people still struggle with the age old question of what it means to be a good person. Apex.
Officially, Alex is not in the labor force.
Given that he is not actually employed (doesn't have an actual job), he cannot be considered part of the labor force. If he had some kind of job other than taking care of his children (even if it's a freelance job he can do from his home), then he would be in the labor force. However, this way, he is not and fall into the same category as unemployed students, for example.
