Conservationists are considering urban runoff, and they are tracking population growth but, the magnitude of the situation has not been determined.
<h3>What are punctuation mark?</h3>
Punctuation marks are used in sentence to better understand a statement. They include the use of signs such as comma and full stop.
The sentence made use of comma and full stop to separate phrase and tenses.
Therefore,
Conservationists are considering urban runoff, and they are tracking population growth but, the magnitude of the situation has not been determined.
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