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

Author Question: True or False: Oxygen most likely accumulated in the atmosphere very gradually after the appearance ... (Read 111 times)

ec501234

  • Hero Member
  • *****
  • Posts: 573
on: Jul 16, 2018
True or False: Oxygen most likely accumulated in the atmosphere very gradually after the appearance of photosynthetic organisms, which consume carbon dioxide while manufacturing oxygen.
 
  Indicate whether this statement is true or false.

Question 2

Evidence that scientists would not utilize to study Earth's formation is
 
  A) Moon rocks.
  B) core samples.
  C) meteorite rocks.
  D) data from other planets.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

sierrahalpin

  • Sr. Member
  • ****
  • Posts: 329
Reply #1 on: Jul 16, 2018
Answer to Question 1

Answer: TRUE

Answer to Question 2

Answer: B


ec501234

  • Hero Member
  • *****
  • Posts: 573
Reply #2 on: Jul 16, 2018
TY


sierrahalpin

  • Sr. Member
  • ****
  • Posts: 329
Reply #3 on: Jul 16, 2018
Happy to Help


« previous next »
 

Did you know?

Certain chemicals, after ingestion, can be converted by the body into cyanide. Most of these chemicals have been removed from the market, but some old nail polish remover, solvents, and plastics manufacturing solutions can contain these substances.

Did you know?

More than one-third of adult Americans are obese. Diseases that kill the largest number of people annually, such as heart disease, cancer, diabetes, stroke, and hypertension, can be attributed to diet.

Did you know?

The Food and Drug Administration has approved Risperdal, an adult antipsychotic drug, for the symptomatic treatment of irritability in children and adolescents with autism. The approval is the first for the use of a drug to treat behaviors associated with autism in children. These behaviors are included under the general heading of irritability and include aggression, deliberate self-injury, and temper tantrums.

Did you know?

Inotropic therapy does not have a role in the treatment of most heart failure patients. These drugs can make patients feel and function better but usually do not lengthen the predicted length of their lives.

Did you know?

Cocaine was isolated in 1860 and first used as a local anesthetic in 1884. Its first clinical use was by Sigmund Freud to wean a patient from morphine addiction. The fictional character Sherlock Holmes was supposed to be addicted to cocaine by injection.

True-color view of Mars seen through NASA's Hubble Space Telescope in 1999 True-color view of Mars seen through NASA's Hubble Space Telescope in 1999
Oxygen Equipment 2 Oxygen Equipment 2
Hints of Earth’s Early Appearance Hints of Earth’s Early Appearance
An ignition- or mixture-related misfire can cause hash on the oxygen sensor waveform. An ignition- or mixture-related misfire can cause hash on the oxygen sensor waveform.
Thermal Layers of the Atmosphere Thermal Layers of the Atmosphere
Sex-influenced inheritance of beard appearance in goats Sex-influenced inheritance of beard appearance in goats
Video: Neural regulation of mechanical digestion- CNS voluntary, ANS & ENS controlled involuntary movements

For a complete list of videos, visit our video library