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
lord [1]
4 years ago
12

Volcanoes created the initial oxygen in the atmosphere. true false

Geography
2 answers:
DanielleElmas [232]4 years ago
7 0
The answer is False!!
geniusboy [140]4 years ago
5 0
No, indeed! As you know, plants put out oxygen. When our Earth was a couple of billion years old, water filled the low spots and became the oceans. (Hugely different in location<span> and shape than now). </span>

<span>In those oceans life was created. One of the earliest life-forms was a blue-green algae. Blue-green algae is very much like a plant, and it even put out oxygen. So it was billions or trillions of these tiny algae that produced the first oxygen in Earth's atmosphere. </span>

<span>The ocean today still produces most of the oxygen on Earth.</span>
You might be interested in
I NEED HELP<br><br>What is an allele?​
KiRa [710]

Answer: Allele, also called allelomorph, any one of two or more genes that may occur alternatively at a given site (locus) on a chromosome. Alleles may occur in pairs, or there may be multiple alleles affecting the expression (phenotype) of a particular trait.

Explanation: i think my answer is an explanation.

7 0
3 years ago
The water table is the
geniusboy [140]
C. Upper Boundary of the zone of saturation
The water table is the upper surface of the zone of saturation. Water seeps into the ground through pore spaces in rock and soil.

6 0
4 years ago
Read 2 more answers
In russia, which of the following occurred after the global financial crisis in 1998
Goryan [66]
In Russia, after the global financial crisis in 1998, Russia became a major exporter of grain after 2001. 
3 0
3 years ago
What evidence tells scientists that earth's core is solid?
AleksAgata [21]
Seismic waves traveling through the earth<span> refract for the same reason that light refracts when entering different substances (e.g. air, water). The inner </span>core<span>has a different density from the outer </span>core<span>, and this difference in density </span>tells<span> us that it is </span>solid<span>.

Hope this helped. Good luck!

</span>
7 0
3 years ago
Why doesn't the dead sea and the fresh water sea never mix? Explain with own answers.
enot [183]
Due to the densities and saltiness of each water, they won’t mix. Different densities will not mix
6 0
2 years ago
Other questions:
  • The Maya, Aztec, Olmec, Toltec, and Zapotec cultures thrived in _____.
    11·1 answer
  • Why is it difficult to turn strong brands into commodities?
    9·2 answers
  • What is the difference between the Haiti earthquake and the LA earthquake?
    12·1 answer
  • Climate does not effect the rate in which weathering can occur. true or false
    10·1 answer
  • What type of climate/ecosystem is found in Region D on the map above? A. desert B. grassland C. rainforest D. mangrove
    8·2 answers
  • explain how human activities affect the sediment supply the littoral zone and its related consequences to the coastal environmen
    9·1 answer
  • why might a cool place with low rainfall be less dry than a hotter place that gets the same amount of rain?
    11·2 answers
  • Identify possible consequences of rapid groundwater withdrawal. Choose one or more: A. Wells go dry. B. A cone of depression for
    8·1 answer
  • A. Identify 4 major informal languages
    8·1 answer
  • As a result of Arab-Israeli conflicts over the territory of Palestine,
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!