An oxygen sag curve describes how oxygen in a body of water is consumed by organisms, such as fish.
Answer the following statement true (T) or false (F)
False
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What advantage do most annual plants (raised using a monoculture approach) have over perennial crops (raised using a polyculture approach)?
A. Higher yield B. Less soil erosion C. Less sediment pollution D. Less fertilizer use
Which of the following describes the relation on an upper-level chart between air temperature and pressure?
A. Changing air temperature is normally associated with low pressure. B. Constant air temperature is normally associated with low pressure. C. Warm air is normally associated with high pressure. D. Cold air is normally associated with high pressure.
The azimuth for a northeast wind is [INSERT FIGURE 4-25. NO CAPTION]
A) 45o B) 135 o C) 225 o D) 315 o
Magnetic patterns develop on the seafloor as basaltic lava erupts and cools, and
A. silicic minerals align with Earth's magnetic field. B. iron-rich minerals align parallel to the oceanic rift. C. iron-rich minerals align with Earth's magnetic field.