Pick and copy all the incorrect options for the following question:

A student wants to determine the effect of garlic on the growth of a fungus species. Several samples of fungus cultures are grown in the same amount of agar and light. Each sample is given a different amount of garlic. What is the independent variable in this investigation?

Options:
- amount of agar
- amount of light
- amount of garlic
- amount of growth



- amount of agar



- amount of light





- amount of growth

