The sun and moon are aligned in a right angle with Earth at its vortex. What kind of tide would this produce?
A) Solar tide
B) Flood tide
C) Spring tide
D) Neap tide
D
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Which of the following is a hazardous waste?
A) heavy metals B) PCB oils C) cyanides D) strong solvents E) All of these are hazardous wastes.
Which of the following statements about the Deepwater Horizon event of 2010 is true?
A) The event affected only the deep-water marine life. B) The cleanup of the spill was relatively fast because the blowout was near the surface. C) Much of the spill was broken down by bacteria or evaporated from the water's surface. D) This was the first large-scale spill of crude oil into marine ecosystems.
From an ecological economist's perspective, without sustainability, as economies grow,
A) gross national product grows too. B) natural resources are renewed. C) the natural world is depleted. D) natural ecosystems are replenished.
PETE (code 1 ) and HDPE (code 2 ) plastics
A) can be recycled and made into many useful products. B) are biodegradable. C) unlike most plastics, are not made from petroleum. D) cannot be incinerated with other organic MSW because of their dioxin content.