amount of animals amount of light amount of soil amount of rain
I am hesitating between 4 options to answer the following question, which option should I choose?
Question: The rate of growth for a species of grass was measured in a treeless yard and tree-shaded yard. The grass grew twice as fast in the treeless yard. Which factor most likely contributed to the difference in growth rate?
Possibilities:
- amount of animals
- amount of light
- amount of soil
- amount of rain

amount of light