Which of the following is the major environmental concern regarding the release of methane from the sea floor to the atmosphere?
A) At least fifty deep-ocean floor sites may contain extensive methane hydrate deposits.
B) Methane is created when bacteria break down organic matter trapped in sea floor sediments.
C) Release of large quantities of methane from the ocean causes dramatic effects on global climate.
D) Sea floor methane seeps support a rich community of organisms that depend on the methane.
E) Sudden releases of methane hydrates have been linked to underwater slope failures.
C
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Which of the following statements is false?
a. The top of the groundwater zone is the water table. b. The recharge of aquifers below cities is very efficient because of storm drains. c. In the zone of saturation, spaces in rock and soil are completely filled with water. d. Rivers of underground water are sometimes found in caverns in aquifers. e. More than one of these choices is false.
Explain the function of the cluster tolerance.
What will be an ideal response?
Which of the following best describes ecotones?
A) They contain only species found in the bordering ecosystems. B) They have the same abiotic characteristics as the bordering ecosystems. C) They consist of many distinct landscapes. D) They are transitional regions between ecosystems and may contain unique species.
Explain how Hawaii faces many of the same challenges as New Zealand in terms of the development of manufacturing for export
What will be an ideal response?