« previous next »

Author Question: The term ________ refers to a group of elements called lanthanides and actinides that are not often ... (Read 47 times)

burton19126

  • Hero Member
  • *****
  • Posts: 532
on: Jul 14, 2018
The term ________ refers to a group of elements called lanthanides and actinides that are not often found in large, commercially valuable quantities.
 
  A) special earths
  B) restricted minerals
  C) rare earths
  D) earth obscures
  E) nonelastic minerals

Question 2

Total world reserves of lithium are sufficient to last ________ years at current consumption rates.
 
  A) 12
  B) 50
  C) 200
  D) 2,500
  E) 500


b614102004

  • Sr. Member
  • ****
  • Posts: 320
Reply #1 on: Jul 14, 2018
Answer to Question 1

Answer: C

Answer to Question 2

Answer: E


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Lower drug doses for elderly patients should be used first, with titrations of the dose as tolerated to prevent unwanted drug-related pharmacodynamic effects.

Did you know?

It is widely believed that giving a daily oral dose of aspirin to heart attack patients improves their chances of survival because the aspirin blocks the formation of new blood clots.

Did you know?

If all the neurons in the human body were lined up, they would stretch more than 600 miles.

Did you know?

Stevens-Johnson syndrome and Toxic Epidermal Necrolysis syndrome are life-threatening reactions that can result in death. Complications include permanent blindness, dry-eye syndrome, lung damage, photophobia, asthma, chronic obstructive pulmonary disease, permanent loss of nail beds, scarring of mucous membranes, arthritis, and chronic fatigue syndrome. Many patients' pores scar shut, causing them to retain heat.

Did you know?

Your chance of developing a kidney stone is 1 in 10. In recent years, approximately 3.7 million people in the United States were diagnosed with a kidney disease.

Cnidarians have specialized stinging cells called cnidocytes Cnidarians have specialized stinging cells called cnidocytes
The term wasp is typically defined as any insect of the order Hymenoptera and suborder Apocrita that The term wasp is typically defined as any insect of the order Hymenoptera and suborder Apocrita that
In one-male group species, extra males typically reside in all-male “bachelor” groups. These are Han In one-male group species, extra males typically reside in all-male “bachelor” groups. These are Han
The myeloma cells do not grow in a selective media called HAT because they cannot synthesize DNA ... The myeloma cells do not grow in a selective media called HAT because they cannot synthesize DNA ...
A square matrix P is called a permutation matrix if each row and column of P contains exactly ... A square matrix P is called a permutation matrix if each row and column of P contains exactly ...
Deoxynucleotides (top) have an OH group at the position in the deoxyribose molecule Deoxynucleotides (top) have an OH group at the position in the deoxyribose molecule
Video: Gastrulation: cross section of the frog

For a complete list of videos, visit our video library