Touching a hot iron: conduction, radiation, or convection?

Stage in which a typical star has completely stopped fusion

Which are examples of how technology has advanced scientific understanding.1using hot water to sterilize medical equipment.2transplanting a human organ into another individual.3inserting genes from one sheep into another cell to make a cloneunderstanding the different structures that make up a cell.4examining microorganisms from the deepest parts of the ocean

What is the most important factor in determining climates.