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

Author Question: How does the modern global climate compare with that of 400,000 and 800,000 years ago? How do we ... (Read 13 times)

Lobcity

  • Hero Member
  • *****
  • Posts: 524
on: Jul 15, 2018
How does the modern global climate compare with that of 400,000 and 800,000 years ago? How do we know?
 
  What will be an ideal response?

Question 2

How did individuals act to help scientists in the Caribbean Sea?
 
  What will be an ideal response?


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

raili21

  • Sr. Member
  • ****
  • Posts: 324
Reply #1 on: Jul 15, 2018
Answer to Question 1

Ice cores in Greenland and the Antarctic have been analyzed for thickness and gas content, especially the content of carbon dioxide and methane, two greenhouse gases. Results of ice core analysis demonstrate that peaks in the levels of methane and global temperatures 400,000 and 800,000 years ago were very similar to the peaks that we see today. However, the peak carbon dioxide levels that we see today have never been seen in history.

Answer to Question 2

Citizen scientists (SCUBA divers) were trained to record which types of fish they see during dives. Scientist were then able to keep track of what is going on in the reef ecosystem.


Lobcity

  • Member
  • Posts: 524
Reply 2 on: Jul 15, 2018
Great answer, keep it coming :)

lkanara2

  • Member
  • Posts: 329
Reply 3 on: Yesterday
Gracias!

« previous next »
 

Did you know?

About 3% of all pregnant women will give birth to twins, which is an increase in rate of nearly 60% since the early 1980s.

Did you know?

Opium has influenced much of the world's most popular literature. The following authors were all opium users, of varying degrees: Lewis Carroll, Charles, Dickens, Arthur Conan Doyle, and Oscar Wilde.

Did you know?

For high blood pressure (hypertension), a new class of drug, called a vasopeptidase blocker (inhibitor), has been developed. It decreases blood pressure by simultaneously dilating the peripheral arteries and increasing the body's loss of salt.

Did you know?

Certain topical medications such as clotrimazole and betamethasone are not approved for use in children younger than 12 years of age. They must be used very cautiously, as directed by a doctor, to treat any child. Children have a much greater response to topical steroid medications.

Did you know?

The highest suicide rate in the United States is among people ages 65 years and older. Almost 15% of people in this age group commit suicide every year.

Evolutionary relationships of the modern plant phyla. Evolutionary relationships of the modern plant phyla.
Neadertal inner ear anatomy is distinctive from modern humans. Neadertal inner ear anatomy is distinctive from modern humans.
Prevalence of drug use in the United States. Figures are based on a survey of people 12 years of age ... Prevalence of drug use in the United States. Figures are based on a survey of people 12 years of age ...
Climate Controls: A Summary Climate Controls: A Summary
Climate change by international treaty Climate change by international treaty
Major Climate Zones and Surface Currents Major Climate Zones and Surface Currents
Video: DNA Replication

For a complete list of videos, visit our video library