Questions by Ruberoid

Questions by Ruberoid

A sample of moon rock was found to contain 40 argon-40 atoms for every 5 potassium-40 atoms. The half-life of postassium-40 is 1.25 billion years. Assuming no loss of daughter isotopes, how old is the

asked Aug 11, 2018

1 answer

1 vote

21.5k views

The fighting between Chechens and Russians has led to _____.

asked Mar 13, 2018

2 answers

2 votes

35.9k views

The term _____ means "naked seeds. A.angiosperm B.gymnosperm C.fungi D.algae

asked Feb 25, 2018

1 answer

3 votes

5.2k views

Equilibrium is best defined as a state of what?

asked Dec 21, 2017

2 answers

0 votes

152k views

By giving the national government more power than the states, the Constitution create a system of government called what?

asked Dec 8, 2017

2 answers

1 vote

64.2k views

How does the Labrador current disrupt North Atlantic shipping lanes

asked Jul 12, 2017

1 answer

2 votes

167k views

A spacecraft is flying away from the moon toward the earth. the moons gravitational pull on the spacecraft will_______. A. Repel the spacecraft B. Decrease C. Increase D. Remain the same

asked Jun 26, 2017

2 answers

0 votes

135k views

Atoms of the element beryllium would most likely behave similar to the way _______ behaves. A. calcium B. lithium C. hydrogen D. boron

asked May 26, 2017

1 answer

2 votes

154k views

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