Which of the following is considered point source pollution?
A) Fertilizers from lawns
B) Municipal sewage sludge
C) Pesticides from agriculture
D) Road oil from automobiles
E) Trash washed down storm drains
B
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Polychaetes are the most successful of the worm phyla, being found in terrestrial, aquatic, and marine environments
a. True b. False
The geologic time scale was first developed in the 19th century using radiometric-dating techniques
Indicate whether the statement is true or false
What happens when fresh water flows into seawater?
A) They mix completely. B) There is a continuous gradation from seawater on top to fresh water on the bottom. C) The fresh water covers the sea water. D) The sea water covers the fresh water. E) There is a continuous gradation from fresh water on top to sea water on the bottom.
The mobile lithospheric plates that comprise the surface of Earth are composed of part or all which compositional layers of Earth? (check ALL that apply)
a.Continental crust b.Oceanic crust c.Upper mantle d.Outer core e.Inner core