The rare earth elements that are considered extremely important for widely used modern technologies include
A) scandium and yttrium
B) scandium, yttrium and the 15 lanthanides
C) yttrium, cobalt and the 15 lanthanides
D) scandium, nobelium and the 15 lanthanides
E) the 17 lanthanides alone
Correct Answer:
Verified
Q16: Convection cells or currents
A) move large volumes
Q17: The epicenter of an earthquake is located
A)
Q18: A friend of yours has granite counter
Q19: Which of the following rocks is most
Q20: Gold is removed from the rock that
Q22: Which of the following statements is false?
A)
Q23: Surface mining techniques are used to extract
Q24: Mineral resources are best categorized as which
Q25: Which of the following is not a
Q26: Slate and marble are _ rocks.
A) Primary
B)
Unlock this Answer For Free Now!
View this answer and more for free by performing one of the following actions
Scan the QR code to install the App and get 2 free unlocks
Unlock quizzes for free by uploading documents