In this task, find the most appropriate number to replace the blank (indicated with _ ) and express it in words.

[Q]: Coral reefs make up only _ per cent of the area of the Great Barrier Reef.
[A]: five


[Q]: Full sun is classified as any area that receives a minimum of _ hours of direct sunlight each day.
[A]: six


[Q]: Human rights are key to people s lives for _ main reasons.
[A]:
four