How does energy first enter a pond ecosystem?

How does energy first enter a pond ecosystem? As sunlight enters a pond, it enables primary producers like algae and plants to create energy through photosynthesis. As animals eat these primary producers, and larger animals eat smaller animals, the energy initially created by plants moves through the food web.

As sunlight enters a pond, it enables primary producers like algae and plants to create energy through photosynthesis. As animals eat these primary producers, and larger animals eat smaller animals, the energy initially created by plants moves through the food web.