Which Two Elements Make Up More Than 90% of the Dry

question 66

Multiple Choice

Which two elements make up more than 90% of the dry weight of plants?

• A) carbon and nitrogen
• B) oxygen and hydrogen
• C) nitrogen and oxygen
• D) oxygen and carbon
• E) carbon and potassium

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A language’s rules for combining words to form acceptable phrases and sentences.

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The process of forming new words or phrases by joining two or more words together.

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