When geologists refer to the "big five," what are they referring to?

Which ideas did your answer contain? check all that apply. no food for organisms no oxygen in the atmosphere no trees or flowering plants no products based on trees or plants (building materials, medicines, fuels, fibers) no fossil fuels

Describe two recent or ongoing space missions.

The diagram shows the layers of earth. convection currents in which region influence the movement of tectonic plates