18 Select the correct location on the image.
Identify the subsystem of Earth that takes the longest amount of time to change, based on the geologic time scale.

An example of what is geese flying south for the

In which situations is the principle of cross-cutting relationship useful in determining relative age?

Which member of the following food chain will be least affected by ddt, a pesticide water pollutant, if bio-magnification is occurring? algae> zooplankton> crayfish> leopard frog> large mouth bass