About ____________________% of the world's proven crude oil reserves are in the hands of government-owned companies
Fill in the blanks with correct word
85
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At the edge of a cliff you throw one ball downward and another ball upward at the same speed. With negligible air resistance, which ball hits the ground faster?
A. The ball thrown upward. B. The ball thrown downward. C. Both hit with the same speed but not at the same time. D. none of the above
Use your knowledge of plate boundaries to answer whether an earthquake is likely or unlikely to occur at the location of the red circle.
A) Likely
B) Unlikely
Cultivation of seafood under controlled conditions is called
A) controlled fish production. B) environmentally controlled seafood production. C) aquaculture. D) overfishing. E) seafood culture.
In addition to lowering the pH of nearby streams, which of the following is an environmental problem associated with acid mine drainage?
A. acidic runoff causes aquifer materials to dissolve B. chemical burns of workers due to presence of alkaline minerals C. increased runoff leading to more frequent flooding D. release of heavy metals into the environment E. erosion of mining tunnels causing land subsidence