6. True/False: Coral bleaching is caused by changes in water environment tempera
ID: 269495 • Letter: 6
Question
6. True/False: Coral bleaching is caused by changes in water environment temperatures and possibly water contaminants. 7. An example of a non-extractive physical resource being utilized from the seas and oceans of the world is (a) fish harvesting (b) oil exploitation and production (c) transportation systems (d) desalination plants 8. True/False: All whaling was banned in 1985 however some still occurs by such countries as Japan and Iceland. 9. When a marine species is considered "commercially extinct", we mean that (a) its populations are so high it is commercially sought, (b) sustainable havestability levels are too low, (c) neither of the above, (d) both of the above. 10. True/False: The largest known oil spill to ever occur was th 12.7 million gallon Exxon Valdez 1989 spill in Prince William Sound in Alaska.Explanation / Answer
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Q.6. Coral bleaching is caused by changes in water environment temperatures and possibly water contaminants…………….. True
Explanation: Coral bleaching is process in which a normal coral loose its colour and make snow like environment inside the deep sea.
Q.7. An example of a non –extractive physical resource being utilized from the seas and oceans of the world is option C: Transportation systems
Explanation: non –extractive physical resource are the resources where sea is used as resource but it is not extractive resource. In another way using ocean as a resource but this resource can’t be taken out from ocean.
Q.8. All whaling was banned in 1985 however some still occurs by such countries as Japan and Iceland…………..False
Explanation: The whaling is the killing of whaling. It is banned by International whaling commission (IWC). Only in Norway is one country which promote whaling. Japan and Ice land kill whales only for Research purposes.
Q.9. When a marine species is considered ‘commercially extinct’, we mean that ……option b i.e. sustainable Investability levels are too low
Explanation: The commercially extinct term is often applied to the fish species it means that the population of a particular species is so less that a fish man cannot capture them to earn money. They are not sufficient in quantity that can be caught and sell.
Q.10 The largest known oil spill to ever occur was 12.7. Million gallon Exxon Valdez 1989 spill in Prince William Sound in Alaska…….. True
Explanation: The largest known oil spill to ever occur was 12.7. Million gallon Exxon Valdez 1989 spill in Prince William Sound in Alaska. It is the largest inland spill ever reported. About 10.8 million US gallons (260,000 bbl; 41,000 m3) of crude oil over the next few days spilled out in the sea.
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