Answer:
I think it's plastic boon
Answer:
A
Explanation:
Hope this helps may I please have brainless if possible
Labor-saving devices are inventions that reduce the time and effort needed to perform or complete a task. Farm equipment, home appliances and construction equipment are examples of mechanical inventions that save time and physical labor.
If a person were using this source and the tables to which it refers to a primary source.
I think the answer is B) a primary source since in most research projects it's important to use primary instead of secondary sources!
~ Hope I helped & Good luck!
