The energy before and after a process must be the same.
No todas las bacterias son perjudiciales los lactobacilos son bacterias que ayudan en la digestión
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
When you rub it, it creates some electrical forms inside that will charge it
