About 25 million child marriages have been prevented in the past decade, reported in March 2018 by:

🧠 Explanation:

UNICEF reported preventing about 25 million child marriages in a decade, emphasizing global child rights. “Prevented” is a past participle verb; “child marriages” is a noun phrase. Alternatives like “avoided” or “stopped” could be used. Such data underscores international development, policy impact, and advocacy efforts.