One More Question For The Day. (What features form at a hotspot? ) Must be in your own words . { Science Question} . Plz Hurry

Much of the general structure and physical properties of the interior of the earth are inferred from: a)deep oil and gas bore holes b)geologic investigations c)analysis of seismic waves d) study of volcanoes

Which position represents spring in the southern hemisphere? a) b) c) d)

Which process does not require the presence of a physical substance in order to transfer heat? air in the atmosphere is heated by the ground. this warm air then rises, and cooler air falls. this is an example of what type of process? how is conduction different from radiation?