What would be an example of the pathway a plastic bag thrown on the ground in eastern Washington could end up in the Pacific Ocean?

Indicate whether the scenario below is safe or unsafe: when storing a flammable liquid, you decide to separate it from other materials by a fire wall.

How do earth’s systems interact with each other?

Select the correct answer. what was edwin hubble's contribution to the field of astronomy? a. he discovered variable stars. b. he proved that the heliocentric model accurately described our solar system. c. he found a relationship between the period luminosity and distance of stars. d. he proved that the universe is finite. e. he discovered that the universe was expanding.