It was because they didn't want to pay for tax
Immediate rewards is the answer
People might be able to solve coal mining from harming habitats maybe by finding a new way to run trains instead of coal. or by mining for coal less.
Answer:The four major categories of labor are based on the general level of knowledge and skills needed to do a particular kind of job. These categories are unskilled, semiskilled, skilled and professional.
Explanation:
