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

Author Question: What is a technique used to estimate past temperatures on Earth recorded in very old ice layers? ... (Read 66 times)

CharlieWard

  • Hero Member
  • *****
  • Posts: 578
on: Jul 13, 2018
What is a technique used to estimate past temperatures on Earth recorded in very old ice layers?
 
 a. Ice coring
  b. Oxygen-isotope analysis
  c. CaCO3 analysis
  d. Radioactive decay

Question 2

Approximately how much of the freshwater on Earth exists in the frozen form, largely as ice and snow in the polar regions?
 
 a. 1
  b. 10
  c. 25
  d. 70


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Pswine

  • Sr. Member
  • ****
  • Posts: 328
Reply #1 on: Jul 13, 2018
Answer to Question 1

b

Answer to Question 2

d


CharlieWard

  • Member
  • Posts: 578
Reply 2 on: Jul 13, 2018
Gracias!

jamesnevil303

  • Member
  • Posts: 337
Reply 3 on: Yesterday
Excellent

« previous next »
 

Did you know?

There are approximately 3 million unintended pregnancies in the United States each year.

Did you know?

Cutaneous mucormycosis is a rare fungal infection that has been fatal in at least 29% of cases, and in as many as 83% of cases, depending on the patient's health prior to infection. It has occurred often after natural disasters such as tornados, and early treatment is essential.

Did you know?

Automated pill dispensing systems have alarms to alert patients when the correct dosing time has arrived. Most systems work with many varieties of medications, so patients who are taking a variety of drugs can still be in control of their dose regimen.

Did you know?

Malaria was not eliminated in the United States until 1951. The term eliminated means that no new cases arise in a country for 3 years.

Did you know?

Illness; diuretics; laxative abuse; hot weather; exercise; sweating; caffeine; alcoholic beverages; starvation diets; inadequate carbohydrate consumption; and diets high in protein, salt, or fiber can cause people to become dehydrated.

Technique of Light Palpation Technique of Light Palpation
6-8 Earth’s Major Tectonic Plates 6-8 Earth’s Major Tectonic Plates
Rivers on Mars and Earth Rivers on Mars and Earth
A sod house in North Dakota, 1896. Individual “bricks” of sod were hewn from the ground and stacked A sod house in North Dakota, 1896. Individual “bricks” of sod were hewn from the ground and stacked
Obliquity "Tilt of Earth on its axis" Obliquity "Tilt of Earth on its axis"
Gel electrophoresis, an essential laboratory technique in biological science research Gel electrophoresis, an essential laboratory technique in biological science research
Video: Parathyroid hormone (bone resorption) & Calcitonin (bone deposition)

For a complete list of videos, visit our video library