Examlex
In a process called denitrification,bacteria convert ammonia to nitrites and eventually to nitrates.
Physical Properties
Characteristics of a material or object that can be observed or measured without changing its composition, such as density, color, or melting point.
Sound Waves
Oscillations of air pressure that travel through the air or another medium and can be heard when they reach a person's or animal's ear.
Auditory Perception
The process by which the brain interprets and makes sense of sound signals received from the ears.
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