Plz help
• Motor driven plow
• Electric lights
• Sewer system
•...
Plz help
• Motor driven plow
• Electric lights
• Sewer system
• Vaccines
What do these technologies have in common?
A.
They are all very expensive to make.
B.
They all help improve quality of life.
C.
They are only used to help poor people.
D.
They are all made from natural resources.
Answers: 2
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