Fix Patchwork Plagiarism

Fix these 4 patchwork-plagiarism paraphrases by changing the syntax AND adding citations: (1) 'The Maya were experts in astronomy who created complex calendars based on detailed study of star movements.' (2) 'Sugar was the initial international commodity, connecting continents through chains of consumption and force.' (3) 'Africa produces less than four percent of worldwide emissions but experiences seventeen percent of climate deaths.' (4) 'Civil rights leaders deployed nonviolence as a strategic tool to expose racist violence.'

1. Syntax-change move: subordinate clause first, main clause second.
2. Or convert active to passive (or vice versa).

• Changes more words but keeps syntax — still patchwork.
• Adds citation but doesn't change syntax.

• Lesson 7 · The three paraphrasing rules — change words,...