To keep relations friendly, rich virginians allowed poor whites to:

Use plantation barns

Explanation:

The wealthy Virgos wanted to maintain a friendly and charitable relationship with white people who were poor. To establish this friendly relationship, wealthy Virgians allowed poor white people to use their plantation planters, use whatever tools they needed, including slaves.

worldwide, 780 million people do not have access to an improved water source. an estimated 2.5 billion people lack access to improved sanitation (more than 35% of the world's population)