A Gas Cloud Has an Emission Spectrum

question 4

Multiple Choice

A gas cloud has an emission spectrum.If all of its lines appear at higher photon energies than expected from a comparison to laboratory measurements,the cloud is:

• A) cooler than the laboratory gas.
• B) hotter than the laboratory gas.
• C) moving away from the observer.
• D) moving toward the observer.

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Definitions:

Successional Species

Successional species are plants and animals that colonize an ecosystem following a disturbance, playing a crucial role in ecological succession towards a stable climax community.

Intermittent Fire

A phenomenon involving fires occurring at irregular intervals, not continuous or steady.

Forest

A large area covered chiefly with trees and undergrowth.

Intense Heat

Extremely high temperatures that can impact the environment, human health, and overall climate patterns.