how people generate different types of waste as they make use of various materials and resources in everyday life?

Part of molten rock at mid-ocean ridges

Which of these describes how heat is transferred by convection* a. sunlight travels through space without the aid of fluids or solids. b. warm air rises and takes the heat with it, eventually, it cools and sinks c. air at the equator rises and sinks at the poles. d. air molecules touch the warm ground, heating them up *not conduction

Which element below could be and isotope of this atom