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:

• Infrared waves from volcanoes: Volcanic gases have unique infrared signatures, so detecting infrared from volcanoes helps identify these gases.
• Infrared for smoke/particles: Infrared can penetrate or interact with smoke/particles, allowing visualization (e.g., in fire detection or air quality monitoring).
• Near - infrared for plant health: Plants reflect near - infrared differently based on health (e.g., chlorophyll content affects reflection, so unhealthy plants with less chlorophyll reflect less near - infrared).
• Satellites and Earth's surface temp: Earth's surface emits heat as infrared waves, and satellites detect these to measure surface temperatures (used in climate studies, weather forecasting, etc.). All these statements are true based on the properties and applications of infrared waves.

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.