TASK DEFINITION: In this task, find the most appropriate number to replace the blank (indicated with _ ) and express it in words.
PROBLEM: Liquids usually descend in three to five seconds, and solids in _ to twenty seconds.

SOLUTION: eight

PROBLEM: Sediment consists of _ visually distinct floc layers.

SOLUTION: two

PROBLEM: Giant squid have _ gas spaces in their bodies.

SOLUTION:
no