H D4 TS Q20 – Selective High School

In an article published in 1940, the author predicted that electricity would revolutionise agriculture in the future. Electrodes would be inserted into the soil, and the electric current would kill weeds and make crops stronger.

Which of the following, if true, most weakens the above argument?

In order for farmers to avoid electric shock while working in the fields, the current needs to be turned off. If the proposed plan for using electricity were implemented, farmers would save on chemicals now being added to the soil. It cannot be taken for granted that the use of electricity is always beneficial. Since weeds are plants; electricity would affect weeds in the same way as it would affect crop plants.

Are you sure you want to leave?

Which of the following, if true, most weakens the above argument?