One of the most harmful contaminants that might reach groundwater from sewage lagoons or septic tanks is:
a. sodium
b. sulfate
c. nitrate
d. chloride
c
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Seawalls protect property and decrease beach erosion
a. True b. False
The only Gulf State with a Caspian Sea coast is:
A) Oman B) Israel C) Iran D) Saudi Arabia
Which of the following most accurately describes the process by which a dead zone occurs?
A) Overharvesting and poor fishing techniques create areas devoid of life within the ocean. B) Fertilizers and pesticides are carried from cities and farmland to the oceans, where these pollutants kill fish and other marine organisms, creating a zone devoid of life near shore. C) Nutrient runoff leads to increased growth of aquatic algae and plants, which remove oxygen from water in order to photosynthesize. Fish and other marine organisms are thus robbed of the oxygen they need. D) Increased nutrients lead to increased growth of algae and plants. When these organisms die, decomposers use oxygen in the water to break down the dead organisms. Fish and other marine organisms are thus robbed of the oxygen they need.
The ________ are the largest and most abused social minority in Japan
A) keiretsu B) Ainu C) burakumin D) Shinjuku