The fix the machine invention
Answer:
I'm not really sure but I would say maybe D I'm sorry if this is wrong
Eliminates shortages and surpluses
Answer:
When more fertilizer is applied than plants can take up, the surplus nutrients, particularly nitrogen, can be lost to the environment. Unused nitrogen fertilizer can leach downward into groundwater, enter nearby surface waters through runoff, or be released into the atmosphere as gases.
Explanation: