(GRADED A+)
The oil and gas found in the marine environment have their origin as _____. -
ANSWERmarine sediments
A major challenge to setting up a marine sanctuary is _____. - ANSWERdetermining
space needs of protected species
Ocean autotrophs are very important commercially. Which one of these organisms
fits that description? - ANSWERkelp
True or False. Seaweed byproducts are used in ice cream. Yum! - ANSWERTrue
The most easily accessible and consistently available marine resource is probably
_____. - ANSWERfish
The efficiency of industrialized fishing has _____ over the last 20 years. -
ANSWERincreased
True or False. The land and the ocean are both important reservoirs of natural
resources. - ANSWERTrue
Marine sanctuaries are areas set aside primarily to _____. - ANSWERreduce human
impacts
Fishery management focuses on _____. - ANSWERmaintaining a sustainable
harvest of resources
Which of the following valuable products does not come from marine sediments? -
ANSWERalginate
True or False. There are still many marine systems/communities that are not
impacted by over-fishing. - ANSWERFalse
By-catch is - _____ caught in a net or dredge. - ANSWERonly the non-commercial
organisms
Manganese nodules develop _____ in the _____. - ANSWERslowly, deep sea
About _____ of all protein consumed by humans comes from the sea. - ANSWER33
1/3 %
True or False. Thanks to modern chemistry, drugs like morphine and aspirin have
been discovered and made available for use. - ANSWERFalse