What effect does temperature and pressure have on the speed of sound when entering seawater?
A) The speed of sound increases as temperature and pressure decreases.
B) The speed of sound increases with temperature increases, but decreases with pressure.
C) The speed of sound decreases as temperature and pressure decrease.
D) The speed of sound is impacted by pressure but not temperature.
C
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Which requires more work on the brakes of a freight train?
A. equal amounts of work for either. B. Slowing down from 100 km/h to 70 km/h. C. Slowing down from 70 km/h to a stop. D. need more information
The pupil of your eye is a net
A. emitter of radiant energy. B. absorber of radiant energy. C. neither of these D. not enough information
Branching channels that cross a delta are known as _____.
a - graded streams b - 3rd order streams c - youthful streams d - tributaries e - distributaries
Increasing suburbanization and exurbanization creates negative environmental impacts such as ________ and ________
Fill in the blank(s) with correct word