Impact on Plants:
Plants need light for photosynthesis, the process by which they make food. Without light, plants would not be able to produce energy, leading to their eventual death.

Impact on Animals:
Animals rely on plants for food, so if there is no light for plants to grow, animals would struggle to find food and eventually starve.

Impact on Humans:
Without light, humans would not be able to see. This would impact our daily activities, including work, travel, and communication.

Impact on Climate:
Light plays a crucial role in regulating the Earth's climate. Without light, temperatures would drop significantly, leading to a global cooling effect.

Impact on Ecosystems:
The entire ecosystem would collapse without light. Plants, animals, and other organisms rely on light for survival, so the absence of light would disrupt the balance of nature.

Impact on Oceans:
Marine plants, such as algae, also require light for photosynthesis. Without light, these plants would die, affecting the entire marine food chain.

Social and Psychological Effects:
The absence of light would have significant social and psychological effects on humans. It would disrupt our circadian rhythms, leading to sleep disturbances and mental health issues.