What will happen to food chain if there is less sunlight?

If there is less sunlight, photosynthesis in plants will decrease, leading to reduced plant growth and productivity. This decline affects primary consumers, such as herbivores, which rely on plants for food, ultimately impacting secondary consumers and higher trophic levels. As a result, the entire food chain may become less stable, with potential declines in biodiversity and shifts in population dynamics as species struggle to adapt to the diminished energy input.