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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62%

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20%

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36%

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30%

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33%

41%

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28%

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24%

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26%

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203

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179

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22%

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28%

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7106

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22%

35%

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16%

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32%

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16%

33%

41%

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55%

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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

What is the name of this butterfly species?

Goldhair moth

Neopalpa donaldtrumpi

Unsightly butterfly

Huskhead neopalda

What charge does a dna molecule have?

What sound can be heard when approaching an iceberg?