PLEASEEE HELP 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 of the following is the main purpose of using an anchored network of booms which funnel debris to a collection area?

In the scramble for africa, european powers drew boundaries and created states that benefitted the colonizers while ignoring the needs of the local populations. what effects did this policy have on the indigenous people following independence?

What are cutting "steps" or terraces