KQ2 Arctic Physical Factors

How much carbon does the Arctic tundra hold?

• 1600MT

• 1400GT

• 1600GT

• 1400MT

How many times greater is the carbon stored in the soil in comparison to biomass?

What is NPP in the Arctic?

• 20g/m2/year

• 200g/m2/year

• 2000g/m2/year

The layer of permafrost that seasonally thaws and refreezes is getting deeper due to climate change.

What is it called?

In the summer, seasonal​ (a)   occurs. As a result, there are more surface pools of water. In Alaska,​ (b)   million small ​ lakes are created due to poor ​ (c)   as permafrost and impermeable rock is below. The Yukon River also increases in river flow, from ​ (d)   cumecs in winter to 24,600 cumecs in summer

• ablation
• drainage
• 3
• 340

The main store of carbon in the Arctic is

• decomposing organic matter in soil

• biomass

• atmosphere

• ice

Match the statements to the stats in relation to the Arctic tundra

• 10

• Mean temperature

• 70-90%

• Months above 0c

• 3

• Albedo rate of ice

• -15

• Highest temperature

What is the predominant rock type in the Alaskan tundra?

• Igneous and sedimentary

• Impermeable sedimentary and metamorphic

• Igneous and metamorphic

• Sedimentary crystalline rock

Sort out these stores and flows as to whether they are high or low in the Arctic

Groups:

(a) High

,

(b) Low

• Precipitation

• Water

• Biomass

• Soil

• Humidity

• Albedo

True or false?

14% of global carbon is stored in Arctic permafrost.

• True

• False