TASK DEFINITION: In this task, find the most appropriate number to replace the blank (indicated with _ ) and express it in words.
PROBLEM: Most biologists divide the living world into _ Kingdoms.

SOLUTION: five

PROBLEM: Rainforests cover less than _ percent of the Earth's surface.

SOLUTION: two

PROBLEM: Some rams have _ fully developed horns, a trait shared by few other breeds of the world.

SOLUTION:
four