Insects eat the leaves of a plant for food. Flowers grow after a summer rain shower. Earthworms loosen soil as they travel through it. Leaves convert sunlight to sugar by photosynthesis.
I am hesitating between 4 options to answer the following question, which option should I choose?
Question: Which of these is a physical change that takes place in a garden?
Possibilities:
- Insects eat the leaves of a plant for food.
- Flowers grow after a summer rain shower.
- Earthworms loosen soil as they travel through it.
- Leaves convert sunlight to sugar by photosynthesis.

Earthworms loosen soil as they travel through it.