Toss Up - Earth Science - Multiple Choice
Which of the following is the only element which is "mined" from the sea? Is it:
W) copper
X) magnesium
Y) uranium
Z) zinc
ANSWER: X) magnesium
Which of the following is the only element which is "mined" from the sea? Is it:
W) copper
X) magnesium
Y) uranium
Z) zinc