Answer:
B. four-crop rotations
Explanation:
the four-crop rotations was invented in the 18th century which means from January 1, 1701 to December 31, 1800. (1700s).
Answer:
The Cordillera Region in Canada is 1
Explanation:
Answer:
A rainbow is caused by sunlight and atmospheric conditions.
Density, because the core is made of metals like iron and nickel