Liang, Helen

Community is essential for humans. But living together comes with challenges–challenges often solved by engineers!

Access to clean drinking water? Engineers did that. Managing garbage? Engineers too.

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• Series: Orca Timeline
• Author: Liang, Helen
• Binding: Hardcover
• Page Count: 96
• Publish Date: May 19 2026
• ISBN10: 1459840534
• Language: English