Comma followed by present participle (verb+ing) generally leads to a cause-effect relationship.
Example:Jack performed brilliantly, leaving the audience delighted.
The mind-map-strategy for RCs
1.Skim through the first paragraph.Take your eyes off the screen.
2. Ask yourself the paragraph's "purpose" .Purpose is always very, very brief.Avoid paraphrasing the details.
3. Skim through the next paragraph.Take your eyes off.Ask yourself the paragraph's "purpose".Link the purpose of the first paragraph with that of the second.
4. Keep repeating Step 3 for all the subsequent paragraphs.
Even x Even = EvenEven x Odd = EvenOdd x Odd = Odd
Even + Even = EvenEven + Odd = OddOdd + Odd = EvenOdd + Odd = Even