Answer:B.
It was used to prove that smoking causes health problems.
Explanation:
Answer:
Corn Picker. In 1850
Cotton Gin.
Cotton Harvester.
Crop Rotation.
The Grain Elevator.
Hay Cultivation.
Milking Machine.
Plow.
Explanation:
there are some agriculture inventions
Answer:
c
Explanation:
glucose is been oxidized while oxygen is reduced to water
