Weeds and production economics

Question 1 of 10

The law of diminishing returns states that adding more of one input while others are fixed eventually

Question 2 of 10

A selective herbicide kills

Question 3 of 10

Using those figures (revenue GH¢18,000, variable GH¢7,000, fixed GH¢5,000), net farm income is

Question 4 of 10

Weeds reduce crop yields by

Question 5 of 10

Gross margin in farm economics is

Question 6 of 10

Revenue GH¢18,000; variable costs GH¢7,000; fixed costs GH¢5,000. The gross margin is

Question 7 of 10

A weed is

Question 8 of 10

A pre-emergence herbicide is applied

Question 9 of 10

Spear grass (Imperata) is difficult to control because of its

Question 10 of 10

Costs that do not change with the level of farm output are