The name for heat transfer between two solids which are in direct contact is

 ... If one side of the solid is "hot" and the other side is "cold", transfer of heat ... The materials that conduct heat poorly, like wood and concrete, are called ... Unlike conduction and convection, radiation does not require direct contact between two systems.

Iguess i would say diagrams would be most difficult subject too correct

The open ocean begins at the low-tide mark and extends to the end of the continental shelf

above statement is not a true statement about the open ocean because the open ocean has low levels of nutrients. most of the photosynthetic activity on earth occurs in the open ocean within the photic zone. organisms in the deep ocean are exposed to frigid temperatures and total darkness but it does not begin at the low-tide mark.