CLEAN : Scene outside presidential palace in Rome as Italy holds breath for PM Draghi's next move

What is the primary focus of the '2nd' concept introduced in the video?

• A grammatical term

• A scientific theory

• A historical event

• A mathematical operation

Which example best illustrates the use of '2nd' as explained in the video?

• The second planet from the sun

• The first law of motion

• The fourth stage of development

• The third chapter of a book

What is a key takeaway about the '2nd' concept from the video?

• It is primarily a historical term

• It is a rare occurrence in nature

• It is often used in ranking or ordering

• It is a fundamental principle in physics