What would happen if green plants disappeared from the Earth?

Explanation

If green plants disappeared from the Earth, herbivores would be the first to suffer because they rely directly on plants as their primary source of food. Without plants, herbivore populations would quickly decline and eventually face extinction due to starvation. This collapse would then have a cascading effect on carnivores, which depend on herbivores for food. With no prey available, carnivore populations would also decline sharply, leading to widespread disruptions in ecosystems. Ultimately, the disappearance of plants would trigger a chain reaction in the food chain, causing the collapse of both herbivore and carnivore populations and destabilizing life across the planet.