Question

scientists use near - infrared waves, a type of infrared wave with wavelengths close to those of visible light, to monitor the health of earths plants. typically, healthy plants reflect more near - infrared waves than unhealthy plants. the opposite is true for visible light. healthy plants reflect less visible light than unhealthy plants. this model shows the percentage of visible light and near - infrared waves reflected by two different plants. (images of a healthy plant (green) reflecting 50% near - infrared waves and 8% visible light, and an unhealthy plant (brown) reflecting 40% near - infrared waves and 30% visible light) complete the sentences. the healthy plant reflects about of near - infrared waves and about of visible light. the healthy plant reflects near - infrared waves than the unhealthy plant reflects.

Explanation:

Step1: Identify the percentage of near - infrared waves reflected by the healthy plant

From the model, the healthy plant has \(50\%\) near - infrared waves reflected.

Step2: Identify the percentage of visible light reflected by the healthy plant

From the model, the healthy plant has \(8\%\) visible light reflected.

Step3: Compare the near - infrared waves reflection of healthy and unhealthy plants

The healthy plant reflects \(50\%\) of near - infrared waves and the unhealthy plant reflects \(40\%\) of near - infrared waves. Since \(50\%>40\%\), the healthy plant reflects more near - infrared waves.

Answer:

The healthy plant reflects about \(50\%\) of near - infrared waves and about \(8\%\) of visible light. The healthy plant reflects more near - infrared waves than the unhealthy plant reflects.