Which substance will have a ph close to 7

(! ) what’s fracking and what does it have to do with carbon, carbon dioxide, or fossil fuels?

Legumes, a type of plant, require rhizobia, a type of soil bacteria, to survive since these organisms fix nitrogen during photosynthesis. rhizobia use the legumes for food. what would most likely happen to the legume population if rhizobia suddenly became extinct?

Isotopes of the same element have differ in their