It would be B, contour plowing
Answer:
False.
Explanation:
I am almost entirely sure that DNA testing had not been discovered at this time, but regardless of whether that is true, the very first criminal case that DNA testing was used in occurred in 1985. So no, it was not used commonly in the 20's.
I think fiber. you need the fiber to remove bowel and make room for more
Answer:
The soil could kill the plants in the area and the consumers will lose there food and the organisms will die off or go extinct.
Explanation: