This topic contains a solution. Click here to go to the answer

Author Question: Potassium-40 decays into daughter isotopes with a half-life of _____. A) 1.25 billion years B) ... (Read 135 times)

kamilo84

  • Sr. Member
  • ****
  • Posts: 495
Potassium-40 decays into daughter isotopes with a half-life of _____.
 
  A) 1.25 billion years
  B) 1.5 billion years
  C) 1.75 billion years
  D) 2 billion years

Question 2

__________is the sticking together of solid particles to produce a larger particle.
 
  A) Condensation
  B) Compression
  C) Accretion
  D) Differentiation



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

akpaschal

  • Sr. Member
  • ****
  • Posts: 342
Answer to Question 1

A

Answer to Question 2

C




kamilo84

  • Member
  • Posts: 495
Reply 2 on: Jul 27, 2018
Excellent


amcvicar

  • Member
  • Posts: 341
Reply 3 on: Yesterday
:D TYSM

 

Did you know?

The strongest synthetic topical retinoid drug available, tazarotene, is used to treat sun-damaged skin, acne, and psoriasis.

Did you know?

On average, someone in the United States has a stroke about every 40 seconds. This is about 795,000 people per year.

Did you know?

As many as 20% of Americans have been infected by the fungus known as Histoplasmosis. While most people are asymptomatic or only have slight symptoms, infection can progress to a rapid and potentially fatal superinfection.

Did you know?

When Gabriel Fahrenheit invented the first mercury thermometer, he called "zero degrees" the lowest temperature he was able to attain with a mixture of ice and salt. For the upper point of his scale, he used 96°, which he measured as normal human body temperature (we know it to be 98.6° today because of more accurate thermometers).

Did you know?

During pregnancy, a woman is more likely to experience bleeding gums and nosebleeds caused by hormonal changes that increase blood flow to the mouth and nose.

For a complete list of videos, visit our video library