Many plants experience regular periods of dormancy. Which of these best explains the benefits of dormancy? It prevents the plant
producing too many offspring. It reduces competition between plants of different species. It allows the plant to conserve nutrients until conditions improve. It allows the plant time to adapt to changing conditions.
Photochemical smog is a mixture of pollutants that are formed when nitrogen oxides and volatile organic compounds (VOCs) react to sunlight, creating a brown haze above cities.
