For the first question, its revise the hypothesis and develop a new experiment to test it
For the second question, the fertilizer independent variable
AR 385-63/MCO 3570.1C is used in conjunction with DA PAM 385-63.
AR 385-63/MCO 3570.1C is the regulation or order which provides revised range safety policy for the Army and Marine Corps.
This order/regulation applies on the Active Army or the Army National Guard of the United states.
Metal because it’s more stronger
Heavy rainfall because that’s a natural thing that happens and can never stop
