How can urbanization effect a local area

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?

What drives an advertising campaign?

Which was most likely an effect on society that resulted from improvements in blood handling during world war i and world war ii?