Flooding is The most harming and common all-natural disasters affecting properties and residential communities around the world. Rocky soil or gravel is an additional durable choice, although they won't assistance Considerably to repel water by themselves. Stay away from leaking resources fully with inflatable barriers. Sand may be the go-to https://docs.google.com/presentation/d/1Ktxfc1R3t3BgvmSvkJJSRUJh5JGtMHA5uwpJ3WTttB8/edit?usp=sharing