You are starting a new item and after reading the first part you realize you have no idea how to go about answering it. What should you do 1) Guess randomly and hope for some useful feedback.
2) Request the solution immediately.
3) Use the available hints.

Which process transfers heat from inside earth to its surface? convection currents in mantle pulling away of tectonic plates drawing in of tectonic plates convection currents in crust

Which statement is actually true about the relationship between activation energy and reaction rates? low activation energy barriers result in low rates. high activation energy barriers result in low rates. low activation energy barriers result in no reaction. high activation energy barriers result in no reaction.

Consider the lewis structure for ch4 methane is this molecule polar or nonpolar