Once a small advertising light box can kill about 350000 insects a year. The night as bright as day will also seriously affect the life cycle of insects, especially adults. Insects are an important link in the natural food chain. Many small animals, birds and bats take insects as their main food, and many plants are pollinated by insects. If the species and number of insects change, It will seriously affect the ecological environment. The pressure of excessive lighting on energy waste and environmental pollution is self-evident.
The passage is intended to emphasize the main effects of light on the growth of animals and plants.