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Flashcards in antarctica - background Deck (20)
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1

where is the antarctic?

south of the antarctic circle

2

what is it fringed by?

ice shelves

3

what are the biggest ice shelves in antarctica?

ronne and ross

4

how big is antarctica?
what is it bigger than?

14 million km2
europe

5

what % of world ice does it hold

90%

6

what % of world fresh water does it hold?

70%

7

where is the boundary, e.g. where is it a global common till?

up to the antarctic convergence

8

what seas/oceans is it surrounded by?

pacific, indian, atlantic oceans
southern sea

9

what is significant about it as a continent?

highest continent

10

on average how high is it above sea level?

2000m

11

what is the average temperature?

-49 degrees

12

what is it described as? (climate)

a polar desert

13

what are the main characteristics of the weather?

dry, windy and cold

14

what is the average wind speed?

50 mph

15

what is the average yearly rain fall?

less than 50 mm

16

why do phytoplankton come here?

there is an upwelling of nutrient rich water that occurs that the antarctic convergence that attracts them

17

where does an upwelling of nutrient rich water occur?

at the antarctic convergence

18

what is very fragile?

the marine ecosystem

19

how many species of flowering plants are there?

only two

20

what types of plants are common here?

lichens and moss