Most plants require a ph between

6.0 to 7.0

Explanation:

A pH of 6.5 is just about right for most home gardens, since most plants thrive in the 6.0 to 7.0 (slightly acidic to neutral) range. Some plants (blueberries, azaleas) prefer more acidic soil, while a few (ferns, asparagus) do best in soil that is neutral to slightly alkaline.

the answer is "c" im pretty sure.

answer; round wood logs, building materials like (plywood),also pulp and paper products;