In Fertilization Experiments in a Lake in Ontario, Which of the Following

question 68

Multiple Choice

In fertilization experiments in a lake in Ontario, which of the following nutrients were shown to have the greatest limitation on productivity?

• A) nitrogen
• B) carbon
• C) phosphorus
• D) All three nutrients equally limited productivity.

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Early Christian Art

The art produced by Christians or under Christian patronage from about the late 2nd to the early 5th century, marked by symbolic representations and the use of Christian motifs.

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