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
Liono4ka [1.6K]
3 years ago
11

The earth's first atmosphere (approximately 4.6 billion years ago) was most likely composed of ____.

Geography
2 answers:
Elena-2011 [213]3 years ago
7 0
The answer to this question is explained below:

Tha earth's first atmosphere (approximately 4.6 billion or several billion years ago) was most likely composed of the following;
First, "water vapor"
Second, "Nitrogen"
Third, "Carbon Dioxide" 

Due photosynthesis, the oxygen increase.
Strike441 [17]3 years ago
5 0
4.6 billion years ago - most likely hydrogen (H2) and helium (He)

probably rich in hydrogen compounds like methane (CH4), ammonia (NH3), hydrogen cyanide (HCN), water (H2O), and formaldehyde (HCHO). Also some N2, CO2 but LITTLE or NO free oxygen.

Molecules of H2 and He move really fast, especially when warm, that they eventually all escaped Earth's gravity and drifted off into space.
You might be interested in
Which poectic techniques are illustrated in the opening lines I am fourteen and my skin has betrayed me the boy I cannot love wi
Eduardwww [97]

It is very easy. It is a lyric monologue done by the poetic abstract voice to directly send his message to the reader.


8 0
3 years ago
BRAINLIEST PLEASE!! IMAGE OF QUESTION BELOW
Yanka [14]
Time distance decay

Hope it helps :)
4 0
1 year ago
Which level of organization is pictured?<br> A cell<br> B tissue<br> C organ<br> D organ system
cluponka [151]

The correct answer is B. Tissue

Explanation:

The tissue is a basic level of organization that is composed of dozens or thousands of cells together, and that composes organs. The image presented illustrates tissue because each of the circles or shapes in it depicts a cell. Moreover, in this tissue, all cells are quite similar in structures and functions. Besides this, the image corresponds to adipose tissue that stores fat or lips and it is part of organs such as the skin. According to this, the correct answer is B.

5 0
3 years ago
How does a warm front form?
yan [13]
A warm front<span> is where a </span>warm air mass is pushing into a colder air mass, <span>https://www.windows2universe.org/earth/Atmosphere/tstorm/warm_front.html.
</span>QUICK ANSWER<span>A warm front occurs when a cold air mass retreats and is replaced by a warm air mass. Warm fronts typically bring some form of precipitation to the area.<span>CONTINUE READING</span></span>
6 0
3 years ago
Read 2 more answers
Giving the right triangle JKL what is the value of cos (L)
kvasek [131]
<h2><u>Answer:</u></h2>

For the right triangle to be given in name of three letters such as this, the right angle is most likely to be in the center, in this case letter K. To determine the common trigonometric properties of a certain angle we may use of the mnemonics SOH - CAH - TOA. 

                         sin angle = opposite side / hypotenuse

                         cosine angle = adjacent side / hypotenuse

                         tangent angle = opposite side / adjacent side

If we let small letter j, k, and l be the sides opposite to angles J, K, and L, respectively. Then, the cos (L) will be,

                                      cos (L) = j/k

3 0
2 years ago
Other questions:
  • Measuring 1,885 miles long, the Rio Grande River is one of the largest rivers in North America. true or false
    11·1 answer
  • What did China use to stop their population for rapidly growing?
    5·1 answer
  • Tibetans now fear that their way of life may be endangered because _____.
    5·1 answer
  • Qual país conhecido como país do cone sul?
    6·1 answer
  • 5) Which of these BEST explains why Russia might identify as more European than Asian?
    14·1 answer
  • In parallelogram ABCD, diagonal AC I CD. If mLACB = 40.<br> find mZADC.
    13·1 answer
  • On a business trip, Vicente drove 426.8 miles during the first week. During the second week, he drove 489.7 miles. By what amoun
    10·2 answers
  • While the European Union only comprises 7% of the World Population it makes up 20% of the World's trade.....what does this indic
    8·1 answer
  • A scientist is studying the living and nonliving things that form a forest.
    5·2 answers
  • HELP ASAP!!!!!!
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!