Which of the following sources of iron would be of the highest quality?
A)iron deposits on the ocean floor
B)a field of spinach
C)a large, scrap metal junkyard
D)a one-half mile deep deposit of iron ore
E)iron in water

Question

Quizplus · Accepted Answer

A one-half mile deep deposit of iron ore would be the highest quality source of iron as it is a concentrated and pure form of the metal. Iron deposits on the ocean floor and iron in water would be difficult to extract and not as concentrated, while spinach and scrap metal may contain impurities or be more difficult to process.

Which of the Following Sources of Iron Would Be of the Highest