What are the major types of time intervals represented by the geologic time scale?

The eruption of a nearby volcano causes a prairie ecosystem to receive a lot less sunlight. which of these is most likely effect on the ecosystem?

Will ! a cell containing a 3% sucrose solution is placed into a beaker containing a 7% sucrose solution. assume the cell’s membrane is permeable to water, but not permeable to the sucrose. where will the water diffuse? explain.

Explain why it’s important for scientists to study the sun. list at least two challenges researchers face when examining earth’s nearest star.