Use the Following Study to Answer the Following Question(s): a Researcher

question 50

Multiple Choice

Use the following study to answer the following question(s) : A researcher applies varying amounts of fertilizer (0, 2, 4, 8, 10 units) to 50 potted tomato plants.All other variables that may affect the outcome (watering, temperature, sunlight, plant size, etc.) are kept the same from pot to pot.At the end of the growing season, the tomatoes grown on each plant are weighed to determine which fertilizer level produced the largest tomato yield.
-Which variable is the independent variable?

• A)The temperature
• B)The tomato yield at the end of the growing season
• C)The fertilizer amount
• D)The plant size at the end of the growing season

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Definitions:

Amplitude

The height or strength of a wave signal, reflecting the loudness of sounds or the intensity of other vibrations.

Loudness

The perceptual characteristic of sound that enables the listener to judge levels of sound intensity.

Sound Waves

Sounds that move through the air or other substances and become audible when they arrive at the ear of a human or animal.

High-frequency

Refers to a characteristic or phenomenon occurring at a rapid rate within a short time period, often used in the context of signals, trading, or waves.