What Is the Rock Colour (Total % of Dark Minerals)of

question 72

Multiple Choice

What is the rock colour (total % of dark minerals) of a typical granite or rhyolite?

• A)< 25%
• B)25-45%
• C)45-85%
• D)> 85%

Explain the xylem's role and properties in water transport.

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Outline the function of proton pumps in establishing ion gradients and pH balance in plant cells.

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