Fountains in ponds may be pretty and also help
A. dredge polluted sediment.
B. add oxygen to the water.
C. remove oxygen from the water.
D. filter the water.
Answer: B
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Which statement is true of the relationship between latitude and ocean characteristics?
a. The temperature in temperate waters is considered to be the least variable. b. Tropical waters are the only regions in which evaporation exceeds precipitation. c. Polar waters have the least variation in air temperature. d. Salinity in tropical waters varies due to high precipitati e. Precipitation exceeds evaporation in temperate waters.
If the resultant force has a significant horizontal component (tangential to Earth's surface), it produces tidal bulges on Earth, creating what are known as ________
A) tide-generating forces B) solar bulges C) lunar bulges D) resultant forces E) centripetal forces
Which of the numbered features is a lateral moraine?
A) 1
B) 2
C) 3
D) 1 and 3
_____ is a special type of natural selection in which males compete for mates or females select mates based on such traits
A)Mate selection B)Breeding C)Sexual selection D)Cross-breeding E)Survival of the fittest