Question

infrared waves have many different applications. select the true statements. infrared waves emitted from volcanoes can be used to identify volcanic gases. infrared waves are used to see smoke and particles in the air. near - infrared wave reflection can be used to monitor the health of plants. satellites monitor earths surface temperatures by detecting heat carried by infrared waves.

Explanation:

1. Infrared waves emitted from volcanoes can be used to identify volcanic gases: Volcanic gases have unique infrared absorption/emission spectra, so infrared detection can identify them.
2. Infrared waves are used to see smoke and particles in the air: Infrared can penetrate or interact with smoke/particles, aiding in visualization (e.g., in fire detection).
3. Near - infrared wave reflection can be used to monitor the health of plants: Healthy and stressed plants reflect near - infrared differently (due to chlorophyll and cell structure), so this is a valid application.
4. Satellites monitor Earth's surface temperatures by detecting heat carried by infrared waves: Infrared waves carry thermal energy, and satellites can detect this to measure surface temperatures.

Answer:

A. Infrared waves emitted from volcanoes can be used to identify volcanic gases.
B. Infrared waves are used to see smoke and particles in the air.
C. Near - infrared wave reflection can be used to monitor the health of plants.
D. Satellites monitor Earth's surface temperatures by detecting heat carried by infrared waves.