Many interactions occur among systems, such as the atmosphere, biosphere, hydrosphere, and geosphere. Of the systems mentioned, which scenario describes an interaction between two different spheres"?
Arctic hare eating woody plants in Alaska
runoff from farming areas into local streams
erupting volcano releasing water vapor into the air
magma cooling and solidifying before it reaches Earth's surface

If 1.8 l of water is added to 2.5l of a 7.0 m koh solution, what is the molarity of the new solution

Identify one disadvantage to each of the following models of electron configuration: -dot structures -arrow and line diagrams -written electron configurations type in your answer below. (answer) -dot structures do not show the distribution of electrons in orbitals and take up a lot of space. -arrow and line diagrams take up a lot of space and make it difficult to count electrons. -written configurations make it easy to lose count of electrons and do not show the distribution of electrons in orbitals.

The twister and runaway train are two coasters at the same amusement park. both coasters start at the same height. the coaster for the twister is twice the mass of the coaster for the runaway train. which roller coaster has greater gravitational potential energy at the start of the ride?