Ageologist finds a sedimentary rock containing a fossilized seashell. what does this tell about the area the rock was formed?

the area was hot and tropical

the area was cold

the area was underwater

the area was once a desert

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?

The distribution of related animals and plants across the world

Diffusion and osmosis are forms of passive transport