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Sample Practice Test Questions
An air mass is a large body of air that has which of the following characteristics?
all of these
An air mass is a large body of air that has similar moisture (density) and temperature characteristics. A front is a transition zone between two air masses.
Which of the following is a decomposer?
fungi
Decomposers (saprotrophs) are organisms such as bacteria and fungi that break down the organic matter in the dead bodies of plants and animals into simple nutrients.
What type of energy does an automotive battery produce?
direct current
An automotive battery produces direct current for use by automotive systems.
The hertz is a unit of measurement for:
frequency
The hertz is a unit of measurement for frequency.
If a car travels 45 miles in 3 hours, what is the average speed?
Average speed in miles per hour is the number of miles traveled divided by the number of hours:
speed = \( \frac{\text{distance}}{\text{time}} \)The joule is a unit of measurement for:
energy
The joule is a unit of measurement for energy.