Which of the following statements is true regarding the process by which plants prepare their own food?
1
Plants require complex organic compounds from their environment to prepare their food.
2
The roots of plants are the main sites where photosynthesis occurs.
3
Plants use sunlight, water, and carbon dioxide to synthesize food, primarily in their leaves through a process called photosynthesis.
4
Photosynthesis is a process exclusive to animals and some microorganisms to prepare their food.