This is a timed quiz.
You have 5 minutes to complete the 3 questions in this quiz.
Alpine is
the highest mountain in the world formed 30-35 million years
the lowest mountains formed 30-35 years
Armorican was
the highest mountains formed about 250 million years ago.
were formed during various periods of folding about 250 million years ago.
Caledonian is
Ireland's oldest folding period.
Ireland's youngest folding period.
