What can cause the loss of soil that is not protected by plant cover? A chemical weathering
B. erosion by water or wind
C. mechanical weathering
D. too many organisms in the soil

Robert wants to know which fertilizer will work the best for his grass. what can he do to explore this inquiry?

In iceland, the mid atlantic ridge runs through the center of the contry. what can you conclude about the apperence of iceland many thousands of years from now?

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?