How deep is the root system of a giant sequoia?

4 meters (13 feet)

20 meters (60 feet)

40 meters (130 feet)

80 meters (260 feet)

The sequoias root system is wide spreading, but shallow. There is no taproot. A mature sequoia's roots can occupy over 1 acre of earth and contain over 90,000 cubic feet of soil.

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Peter & Joyce Grace www.giant-sequoia.com

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Australia

62%

10%

20%

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62%

12%

16%

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53%

14%

10%

21%

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42%

14%

28%

Nigeria

41%

25%

16%

Belarus

40%

30%

20%

Ukraine

39%

12%

26%

21%

104

Russia

31%

13%

37%

15%

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31%

12%

18%

37%

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30%

10%

30%

the United States

28%

12%

31%

26%

236

Germany

28%

11%

30%

26%

138

the United Kingdom

27%

18%

34%

20%

Unknown

27%

17%

24%

31%

Switzerland

25%

12%

25%

37%

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23%

17%

28%

30%

7544

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23%

19%

27%

29%

195

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22%

11%

38%

27%

Austria

18%

24%

32%

24%

Canada

14%

42%

35%

How do baby birds get oxygen inside their eggs?

They have a large oxygen supply from the start

Oxygen is created during protein reduction

Oxygen comes in through pores in the shell

They don't need oxygen at all

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