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
lora16 [44]
3 years ago
15

When was oxygen first produced?

Biology
2 answers:
sp2606 [1]3 years ago
5 0

2.45 billion years ago

Explanation:

but was discovered in 1772

Wewaii [24]3 years ago
3 0

Answer:

2.45 billion years ago

Explanation:

You might be interested in
BRAINLIESTTTT ASAP!!!<br><br> How can space exploration impact the economy and culture of a region?
Lilit [14]
Hello, Geny5!! Space exploration has affected the economy by simple things such as technology and airline businesses. In the technology field, portable devices, like cell phones, mostly started with portable communication systems in space. Whereas the airline business, a lot of the technology in airplanes today was used in order to travel to space and for exploration. If you think about it, when astronauts talk to each other in space, they are using portable technology like cell phones. In airplanes, they have oxygen and the ability to control how to stay in the air/fly/land, like rockets and other things NASA uses. Culturally, it would boil down to technology, again. Many things in our lives today are centered around technology, just like space exploration. They have to have the technology to get them into space and come back down. If it wasn’t for space exploration, we wouldn’t have computers, cell phones, or even solar panels. I hope this helped!! Have a great evening!! :)
8 0
4 years ago
____________ are novel prokaryotic organisms that belong to their own superkingdom (domain).
Rzqust [24]
<span> A Kingdom of Domain Eukarya are the prokaryotic organisms that belong to their own super kingdom.</span>
4 0
4 years ago
Which of these would best fill in the chart for "B"?
Yuki888 [10]
Is there perhaps a pic you can post so we may help you :3 or options
7 0
3 years ago
Which male gland secretes a thin, milky secretion, that will help to neutralize the acidic environment of the male urethra and v
denis23 [38]
Testis is the <span>male gland  that secretes a thin, milky secretion, that will help to neutralize the acidic environment of the male urethra and vagina of the female</span>
5 0
3 years ago
Read 2 more answers
PLS ANSWER CORRECTLY FOR 50 POINTS
Serhud [2]

Answer: you would then put more sand on top and wait then a little more water!

Explanation:

Because you have to sublimated the leaves

4 0
3 years ago
Other questions:
  • Which of the following elements is most important for respiration? carbon oxygen hydrogen nitrogen
    7·2 answers
  • Our bodies are "time capsules" that tell of critical moments in the history of our planet and of the distant past in ancient oce
    12·1 answer
  • Is it ok to use a handwashing sink to store dirty dishes?
    6·1 answer
  • What are 5 main chemicals that make all living things?
    5·1 answer
  • You are evaluating the pH-dependent properties of the peptide R-E-T-C-H. You do NOT need to draw the peptide on this exam, but i
    11·1 answer
  • Movement of any particle or molecule from higher concentration to lower concentration is called
    10·2 answers
  • 50 points welp
    7·2 answers
  • Creating RNA from DNA
    15·2 answers
  • TRUE OR FALSE? Do electromagnetic waves, such as light waves, require a medium or something to travel in?
    10·1 answer
  • What are the light gray lines in the graph showing? Provide EXAMPLES
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!