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 134 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?

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?

Many of the drugs used by neuroscientists are derived from toxic plants and venomous animals (such as snakes, spiders, snails, and puffer fish).

Did you know?

The toxic levels for lithium carbonate are close to the therapeutic levels. Signs of toxicity include fine hand tremor, polyuria, mild thirst, nausea, general discomfort, diarrhea, vomiting, drowsiness, muscular weakness, lack of coordination, ataxia, giddiness, tinnitus, and blurred vision.

Did you know?

Malaria mortality rates are falling. Increased malaria prevention and control measures have greatly improved these rates. Since 2000, malaria mortality rates have fallen globally by 60% among all age groups, and by 65% among children under age 5.

Did you know?

After 5 years of being diagnosed with rheumatoid arthritis, one every three patients will no longer be able to work.

Testing a dual cell wideband oxygen sensor can be done using a voltmeter or a scope. The meter ... Testing a dual cell wideband oxygen sensor can be done using a voltmeter or a scope. The meter ...
Normal oxygen sensor frequency is from about one to five times per second. Normal oxygen sensor frequency is from about one to five times per second.
The Upper Troposphere: Westerly Winds in the Upper Atmosphere The Upper Troposphere: Westerly Winds in the Upper Atmosphere
In plant fossils, stomatal density is used to estimate CO2 concentration in the atmosphere In plant fossils, stomatal density is used to estimate CO2 concentration in the atmosphere
The minimum number of moles of oxygen needed to completely consume 4 moles of C3H8O is ... The minimum number of moles of oxygen needed to completely consume 4 moles of C3H8O is ...
Video: Carbohydrate digestion (brush border enzymes, end products) & Carb absorption (fructose, galactose)

For a complete list of videos, visit our video library