This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: The last pole reversal occurred ________ years ago and, based on magnetic field decay, we are ... (Read 45 times)

Mollykgkg

  • Hero Member
  • *****
  • Posts: 529
on: Jul 14, 2018
The last pole reversal occurred ________ years ago and, based on magnetic field decay, we are approximately ________ years from entering the next phase.
 
  A) 1 million; 200,000
  B) 20,0000; 50,000
  C) 1,000; 50
  D) 790,000; 1,000

Question 2

The horizon that is commonly called topsoil is the ________ horizon.
 
  A) A
  B) O
  C) E
  D) B
  E) C


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

carlsona147

  • Sr. Member
  • ****
  • Posts: 341
Reply #1 on: Jul 14, 2018
Answer to Question 1

D

Answer to Question 2

A


Mollykgkg

  • Member
  • Posts: 529
Reply 2 on: Jul 14, 2018
Wow, this really help

Perkypinki

  • Member
  • Posts: 339
Reply 3 on: Yesterday
:D TYSM

« previous next »
 

Did you know?

Ether was used widely for surgeries but became less popular because of its flammability and its tendency to cause vomiting. In England, it was quickly replaced by chloroform, but this agent caused many deaths and lost popularity.

Did you know?

Disorders that may affect pharmacodynamics include genetic mutations, malnutrition, thyrotoxicosis, myasthenia gravis, Parkinson's disease, and certain forms of insulin-resistant diabetes mellitus.

Did you know?

The longest a person has survived after a heart transplant is 24 years.

Did you know?

As many as 28% of hospitalized patients requiring mechanical ventilators to help them breathe (for more than 48 hours) will develop ventilator-associated pneumonia. Current therapy involves intravenous antibiotics, but new antibiotics that can be inhaled (and more directly treat the infection) are being developed.

Did you know?

Illicit drug use costs the United States approximately $181 billion every year.

Female choice of males based on nuptial gifts. Female choice of males based on nuptial gifts.
Field Spaniel Field Spaniel
Measurements of solar cycle variation during the last 30 years Measurements of solar cycle variation during the last 30 years
Atmospheric CO2 Concentrations Increased Very Rapidly during the Last 200 Years Atmospheric CO2 Concentrations Increased Very Rapidly during the Last 200 Years
Nursing: A Concept-Based Approach to Learning, Volume II, 3rd Edition Nursing: A Concept-Based Approach to Learning, Volume II, 3rd Edition
Jamal plans to retire in 17 years. He is saving $2000 every start of the month in a retirement ... Jamal plans to retire in 17 years. He is saving $2000 every start of the month in a retirement ...
Video: Major Elements in Biological Molecules: Carbohydrates

For a complete list of videos, visit our video library