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Author Question: During the Middle Ages, the Chinese used ____________________ to control pests on crops. Fill in ... (Read 52 times)

newbem

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on: Jul 21, 2018
During the Middle Ages, the Chinese used ___________________ _ to control pests on crops.
 
  Fill in the blank(s) with correct word

Question 2

As far back as 200 B.C., the Romans used an asphalt-like mixture called ___________________ _ to control insects in vineyards.
 
  Fill in the blank(s) with correct word


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steff9894

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Reply #1 on: Jul 21, 2018
Answer to Question 1

arsenic

Answer to Question 2

bitumen


newbem

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Reply 2 on: Jul 21, 2018
Wow, this really help

JaynaD87

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Reply 3 on: Yesterday
Excellent

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