Author Question: Volcanoes are found at ____________________ plate boundaries and ____________________ plate ... (Read 104 times)

nevelica

  • Hero Member
  • *****
  • Posts: 563
Volcanoes are found at ___________________ _ plate boundaries and ___________________ _ plate boundaries.
 Fill in the blank(s) with correct word

Question 2

A rock sample containing an isotope with a half-life of 12 million years has an initial mass of 72 grams. How much of the daughter isotope will be present after three half-lives?
 A)4.5 grams
 B)9 grams
 C)18 grams
 D)54 grams
 E)63 grams



Danny Ewald

  • Sr. Member
  • ****
  • Posts: 332
Answer to Question 1

divergent, convergentconvergen t, divergent

Answer to Question 2

E



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question

Danny Ewald

  • Sr. Member
  • ****
  • Posts: 332

 

Did you know?

Asthma attacks and symptoms usually get started by specific triggers (such as viruses, allergies, gases, and air particles). You should talk to your doctor about these triggers and find ways to avoid or get rid of them.

Did you know?

For pediatric patients, intravenous fluids are the most commonly cited products involved in medication errors that are reported to the USP.

Did you know?

The calories found in one piece of cherry cheesecake could light a 60-watt light bulb for 1.5 hours.

Did you know?

Hip fractures are the most serious consequences of osteoporosis. The incidence of hip fractures increases with each decade among patients in their 60s to patients in their 90s for both women and men of all populations. Men and women older than 80 years of age show the highest incidence of hip fractures.

Did you know?

The average person is easily confused by the terms pharmaceutics and pharmacology, thinking they are one and the same. Whereas pharmaceutics is the science of preparing and dispensing drugs (otherwise known as the science of pharmacy), pharmacology is the study of medications.

For a complete list of videos, visit our video library