Geography

Mangroves cover_____ km2 of the earth’s surface ?

• 137000

• 105470

• 59780

• 163400

What are the benefits of mangroves ? (2 correct answers)

• Filter and break down pollution from land

• It’s leaves will often fall into the ocean and serves as a significant food source for certain breeds of fish

• Mangrove patches have become an area of tourism and provides around 1000 jobs each year

• Reduce energy waves that arrive from the shore

The artic ocean is in ______

• Northern Hemisphere and the Southern Ocean

• Northern Hemisphere and the Indian Ocean

• Southern Hemisphere and the White Sea

• Northern hemisphere and the poler sea

Some of the ice in the Arctic is believed to have existed for at least _____ years

Sea ice grows and shrinks each year. In the Arctic it reaches its maximum extent in ____

• March

• January

• October

• July

_______perform nearly 50% of all photosynthesis

• phytoplankton

• Sphygmomanometer

• Thysymtopia

• mitsuha miyamizu

the ocean is vast and has an average depth of ______

• 3720m

• 4012m

• 3490

• 4939

88% of the ocean is deeper than ____

There are about____

different animal species in the ocean

• 10-15 million

• 9-13 million

• 15-20 million

• 1 billion

The

'reflectiveness' of a

surface is known as

its _____