What is rarely a limiting factor for marine organisms?
a. Salinity
b. pH
c. Hydrostatic pressure
d. Nitrogen
C
Hydrostatic pressure is the constant weight of water on an organism. Most marine organisms virtually
have the same pressure inside ass there is outside. Information can be found in the section Marine Life
Success Depends upon Physical and Biological Environmental Factors.
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Which of these atmospheric gases is a variable gas (accounting for a variable percentage of the atmosphere)?
a. oxygen b. argon c. ozone d. nitrogen e. neon
__________________ describe(s) the time interval between glacial advances
Fill in the blank(s) with correct word
A clast of granite found in a breccia is dated at 450 million years old. What can you conclude about the breccia?
a. The breccia is older than 450 million years. b. The breccia is younger than 450 million years old. c. The breccia was metamorphosed more than 450 million years ago. d. The breccia was metamorphosed fewer than 450 million years ago. e. You can’t draw any conclusions
A ________ stream pattern is developed only on growing mountains like volcanoes or where the land surface is tectonically doming upward
A) dendritic B) boreal C) trellis D) radial