TASK DEFINITION: Given a scientific passage and an answer, generate a question for the given answer.
PROBLEM: Passage: Bone marrow is a soft connective tissue that produces blood cells. It is found inside the pores of spongy bone. Answer: bone marrow

SOLUTION: What is found inside the pores of spongy bone?

PROBLEM: Passage: Improving crops by selecting for certain genetic traits. The desired traits promote productivity. Recently, genetically engineered crops have been introduced. Answer: promotes productivity

SOLUTION: What is the advantage of selecting for certain genetic traits for crops?

PROBLEM: Passage: Accuracy means making measurements that are close to the true value. Answer: accuracy

SOLUTION:
What is making measurements that are close to the true value known as?