At least 12 dead in fighting near strategic port of Hodeida

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

• A new mathematical operation

• A historical event

• A grammatical term

• A scientific theory

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

• The second chapter of a book

• The second law of thermodynamics

• The second phase of the moon

• The second person in line

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

• It is a philosophical idea

• It is a simple numerical order

• It is a historical reference

• It is a complex scientific principle