The Difference Between Tephra and Tuff Is That ____________

question 47

Multiple Choice

The difference between tephra and tuff is that ____________.

• A)tephra is created in ash falls,whereas tuff is created in pyroclastic flows
• B)tephra is unlithified,whereas tuff is lithified
• C)tephra is always silicic,whereas tuff is always basaltic
• D)All of the above are correct.

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Definitions:

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The uncontrolled spread of genetically modified or foreign genes into wild populations, potentially threatening biodiversity.

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Laboratory-created DNA molecules that combine genetic material from various sources through genetic recombination techniques.

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Types of plastic materials that are capable of being decomposed by bacteria or other living organisms, reducing environmental pollution.

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Plants genetically modified or bred to resist certain pathogens, reducing the reliance on chemical pesticides.