The author uses comparisons between changes in economies and earthquakes in order to show A
the severity of the effects of both.

B
the effects which small and large changes have.

C
that both are unpreventable.

D
that both attract the attention of the public.

Break down of rocks and minerals into smaller particles without a change in composition is called_

The graph shows the populations of two species in a particular region over two decades. based on the graph, what can you conclude about the relationship between the two species? a. the two species have a parasitic relationship. b. the two species are mutualistic in nature. c. the two species exhibit commensalism. d. the two species have a prey-predator relationship. e. the two species have a familial relationship.

In this food web, which group would increase in number if snakes were eliminated? a. producers b. decomposers c. primary consumers d. secondary consumers e. tertiary consumers