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%

Greece

62%

12%

16%

Kazakhstan

53%

14%

10%

21%

Estonia

46%

15%

23%

Belarus

42%

31%

15%

Nigeria

41%

25%

16%

Ukraine

38%

12%

27%

21%

103

Russia

31%

13%

37%

15%

Republic of Ireland

31%

12%

18%

37%

Pakistan

30%

10%

30%

the United States

27%

12%

32%

26%

231

Unknown

27%

17%

24%

31%

the United Kingdom

26%

18%

34%

20%

Switzerland

26%

13%

20%

40%

Germany

24%

12%

32%

28%

128

Poland

23%

17%

28%

30%

7527

India

23%

19%

27%

29%

195

the Philippines

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

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