Question

infrared waves emitted from lava are absorbed by volcanic gases. each type of gas absorbs unique wavelengths of infrared waves. a spectrometer positioned above the volcano measures these wavelengths. then, these measurements are used to identify the types of gases emitted by a volcano. monitoring volcanic gases helps scientists predict the likelihood of a volcanic eruption. spectrometer above the overlook vent in halemaumau crater in hawaii complete the sentences. infrared waves are by lava and then are by volcanic gases. a spectrometer measures the of these infrared waves to determine the types of gases emitted by the volcano.

Explanation:

To solve this, we analyze the given text:

1. For the first blank: The text says "Infrared waves emitted from lava...", so the first verb is "emitted" (as waves are produced by lava).
2. For the second blank: The text states "Infrared waves emitted from lava are absorbed by volcanic gases", so the second verb is "absorbed".
3. For the third blank: The text mentions "A spectrometer... measures these wavelengths" and "these measurements are used to identify the types of gases", so the spectrometer measures the "wavelengths" of infrared waves.

Filling the Blanks:

• Infrared waves are $\boldsymbol{\text{emitted}}$ by lava and then are $\boldsymbol{\text{absorbed}}$ by volcanic gases.
• A spectrometer measures the $\boldsymbol{\text{wavelengths}}$ of these infrared waves to determine the types of gases emitted by the volcano.

Final Answers (for the blanks in order):

1. emitted
2. absorbed
3. wavelengths

Answer:

To solve this, we analyze the given text:

1. For the first blank: The text says "Infrared waves emitted from lava...", so the first verb is "emitted" (as waves are produced by lava).
2. For the second blank: The text states "Infrared waves emitted from lava are absorbed by volcanic gases", so the second verb is "absorbed".
3. For the third blank: The text mentions "A spectrometer... measures these wavelengths" and "these measurements are used to identify the types of gases", so the spectrometer measures the "wavelengths" of infrared waves.

Filling the Blanks:

• Infrared waves are $\boldsymbol{\text{emitted}}$ by lava and then are $\boldsymbol{\text{absorbed}}$ by volcanic gases.
• A spectrometer measures the $\boldsymbol{\text{wavelengths}}$ of these infrared waves to determine the types of gases emitted by the volcano.

Final Answers (for the blanks in order):

1. emitted
2. absorbed
3. wavelengths