Examlex
___________ is a visual pigment that helps transform light energy into a nerve impulse sent to the brain.
Utility
In economics, a measure of the satisfaction received from consuming goods and services.
Air Pollution
The presence of harmful or excessive quantities of substances, including gases, particles, and biological molecules, in the earth's atmosphere, which can lead to health problems and environmental damage.
Ethical Way
Conducting oneself or performing actions based on what is morally right and fair.
Field Day
A day of outdoor activities and competitions, often held by schools or organizations as a celebratory event.
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