« previous next »

Author Question: Using ice core samples and analyses, researchers have discovered that over the past 800,000 years ... (Read 27 times)

Starlight

  • Hero Member
  • *****
  • Posts: 567
on: Jul 16, 2018
Using ice core samples and analyses, researchers have discovered that over the past 800,000 years
 
  A) glaciers were greatest when greenhouse gases increased the most.
  B) the Earth has gradually been warming and sea levels have been rising.
  C) there is a strong correlation between global temperatures and greenhouse gases.
  D) atmospheric levels of methane and carbon dioxide have steadily been increasing.

Question 2

Scientists use proxies to study climate in order to measure
 
  A) current levels of carbon dioxide.
  B) changes in temperature over the past 100 years.
  C) changes in the ozone layer over the past 30 years.
  D) climates hundreds and thousands of years ago.


IAPPLET

  • Sr. Member
  • ****
  • Posts: 333
Reply #1 on: Jul 16, 2018
Answer to Question 1

C

Answer to Question 2

D


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Calcitonin is a naturally occurring hormone. In women who are at least 5 years beyond menopause, it slows bone loss and increases spinal bone density.

Did you know?

About 600,000 particles of skin are shed every hour by each human. If you live to age 70 years, you have shed 105 pounds of dead skin.

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?

Adolescents often feel clumsy during puberty because during this time of development, their hands and feet grow faster than their arms and legs do. The body is therefore out of proportion. One out of five adolescents actually experiences growing pains during this period.

Did you know?

Despite claims by manufacturers, the supplement known as Ginkgo biloba was shown in a study of more than 3,000 participants to be ineffective in reducing development of dementia and Alzheimer’s disease in older people.

Language is the basis of human culture around the world. The past decade has seen major developments ... Language is the basis of human culture around the world. The past decade has seen major developments ...
Preschool: 3–6 years. Preschool: 3–6 years.
The European Core: Cities The European Core: Cities
Catalytic core of sirtuins is evolutionarily conserved Catalytic core of sirtuins is evolutionarily conserved
Financial Management: Core Concepts Financial Management: Core Concepts
Patients Older than 60 Years of Age Patients Older than 60 Years of Age
Video: HIV Infection: Viral life cycle

For a complete list of videos, visit our video library