Chapter 5 Ocean and Fisheries

Only ____% of the surface of the Earth is actually land, leaving the oceans covering ____%. The vast majority of this area, however, remains relatively unknown.

• 29, 71

• 50,50

• 80,20

• 9,91

Only about ____% of the ocean is over the continental shelf, where the water is relatively shallow. The remaining _____% of the ocean is over an abyss.

• 10,90

• 29,71

• 30,70

• 50,50

over 250 000 tonnes of waste plastic are currently circulating in five huge ocean regions known as _________

• gyres

• pools

• islands

• oasis

By far the most important resource that humans obtain from the oceans is fish. This term can be used to include true fish, or finfish, but also shellfish and other animals that live in the sea and can be eaten

• tourism

• transportation

• food

• energy

The main fisheries are located on the ____________. This is because the water is shallow there, so light can penetrate and there is more oxygen than further down.

• continental shelves

• continental drift

• continental oasis

• continental shallows

There is an enormous amount of energy in the waves that break on the shores all around the world. It is estimated that if this energy could be harvested it would be to twice the present world's energy production.

• tidal energy

• hydroelectric power

• current

• solar energy

the largest tidal power energy plant is located in _______________

• South Korea

• Japan

• Russia

• France

Ships that transport food such as rice and wheat.

• bulk carriers

• ferries

• ocean liner

• tankers

the type of ship transport of fluids, especially oil and petroleum products

• bulk carriers

• tankers

• cruise ships

• roll on/off ships

Ships that transport perishable items like vegetables, fruits, fish and diary products.

• refrigerated ships

• tankers

• ferries

• cruise ships