TASK DEFINITION: Given a scientific question, generate a correct answer to it.
PROBLEM: Oxygen reaches what veinless part of the eye by diffusing through its tear layer?

SOLUTION: cornea

PROBLEM: Activated macrophages and neutrophils discharge what that signals molecules that enhance an immune response?

SOLUTION: cytokines

PROBLEM: What science includes many fields of science related to our home planet?

SOLUTION:
earth science