1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Nataly [62]
3 years ago
7

Which process do scientists think provided Earth with an oxygen-rich atmosphere?

Geography
2 answers:
zaharov [31]3 years ago
8 0

Answer:

photosynthesis

So how did Earth end up with an atmosphere made up of roughly 21 percent of the stuff? The answer is tiny organisms known as cyanobacteria, or blue-green algae. These microbes conduct photosynthesis: using sunshine, water and carbon dioxide to produce carbohydrates and, yes, oxygen.

Explanation:

MrMuchimi3 years ago
4 0

Answer:

photosynthesis

Explanation:

Photosynthesis: Is the process by which green plants and some other organisms use sunlight to synthesize foods from carbon dioxide and water. Photosynthesis in plants generally involves the green pigment chlorophyll and generates oxygen as a byproduct.

You might be interested in
What type of technology does Mexico use
tester [92]
<span>Mexicans have access to first-world infrastructure and high-velocity Internet speeds in Mexico City, in pockets along the border with Texas, and in business centers like Monterrey and Guadalajara, but the vast majority of Mexicans live beyond the reach of the digital age. About 82 million people — 70 percent of Mexicans — have no access to a computer or the Internet, according to the Mexican Internet Association, or AMIPCI.</span>
4 0
3 years ago
How is latitude measured?
NeX [460]

Lines of latitude measure north-south position between the poles. The equator is defined as 0 degrees, the North Pole is 90 degrees north, and the South Pole is 90 degrees south. Lines of latitude are all parallel to each other, thus they are often referred to as parallels. Your latitude can be calculated by measuring the angle of the sun.


- R3KTFORGOOD ☕

5 0
3 years ago
A certain sample of limestone formed when shells from organisms were buried under layers of sediment and experienced pressure. A
Tamiku [17]

Answer:

The problem with this classification is clastic sedimentary rocks are not formed with organic elements, that is, they do not form with the remains of organisms, such as shells, for example

Explanation:

The student made an incorrect classification. This is because he classified a rock formed from shells as clastic sedimentary rock.

Shells are organic materials, as they are the remains of living organisms. Organic material is not capable of forming clastic sedimentary rocks, as these rocks are formed only by sediments. Remains of organisms, manage to form a type of rock called organic rock.

3 0
3 years ago
The Appalachian Mountains in the eastern United States appear to be a part of the same mountain range that continues in _____.
sattari [20]
The answer is Great Britain and Scandinivia
5 0
4 years ago
Read 2 more answers
Globalization has led to a rapid increase of which of the following
Brrunno [24]

Answer:

ok A

Explanation:

ggggggggggggggggggggggggggggggggggggggggggg

8 0
3 years ago
Other questions:
  • Ano ang pangunahing produkto ng malabon?
    7·1 answer
  • In the Professor Latilong activity, what information were you given to help you find each artifact?
    9·2 answers
  • What four bodies of water touch the Arabian peninsula
    14·2 answers
  • Biomass fuels store energy from sunlight in which form?
    12·1 answer
  • What result from the two wars fought between israel and its arab neighbors?
    9·2 answers
  • In what region does a “yes” response have an ambiguous meaning
    11·1 answer
  • Describe and explain the physical and/or chemical methods used to refine the coal
    8·1 answer
  • A scientist reports the pressure of the eye of a hurricane has decreased. What does this mean?
    15·2 answers
  • What are the si units of weight and acceleration​
    14·1 answer
  • Plz help<br> ==================
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!