Answer: the correct answer is nonreactive
Explanation: Using secondary data is considered an unobtrusive or <u>nonreactive</u> research method.
The artic circle can bring butter cold weather with very low humidity
Answer:The Industrial Revolution was powered by burning coal, and big industrial cities began pumping vast quantities of pollution into the atmosphere.
Explanation:
Answer:
Disease increased bc medicine was in short supply.
Explanation:
i just took the test