- Photosynthesis makes food for the plant by converting carbon dioxide, water, and sunlight into carbohydrates
- A leaf is a part of a plant
- A leaf performs photosynthesis
- Hence, leaves of plant make food by performing photosynthesis

- Leaves of plant make food by performing photosynthesis
- A plant is missing leaves
- So, the plant will make less food

- The plant will make less food
- A plant / living thing requires food for survival
- Therefore, the food the plant requires to survive will be less

- The food the plant requires to survive will be less
- The decrease of something required by an organism has a negative impact on the survival of the organism
- So, making less food has a negative impact on the plant

Therefore, making less food has a negative impact on the plant
[Question]Jeremiah noticed a plant had many missing leaves and large holes in other leaves. Why do missing leaves hurt the plant?
[Context]- Photosynthesis makes food for the plant by converting carbon dioxide, water, and sunlight into carbohydrates 
- A leaf is a part of a plant 
- A plant / living thing requires food for survival 
- The decrease of something required by an organism has a negative impact on the survival of the organism 
- A plant is missing leaves 
- A leaf performs photosynthesis