Eurasia is an area between europe and africa asia and australia asia and africa europe and asia

Eurasia the the combined land of two continents: of Europe and Asia.

To the South-west Eurasia borders Africa, so it will definitely be in the correct answer. It can't be "Europe and Africa" since Europe is a part of Eurasia .
It also can't be "Asia and Africa" since Asia is a part of Eurasia .

The correct answer would be: Africa and Australia - but there is no such answer.

So I understand that the question means the land that the two continents share - then the best answer is "Europe and Asia".

Earthquake waves that vibrate from side to side and up and down only through solids are known as "seismic waves."hope my answer has you : )