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
Svetradugi [14.3K]
3 years ago
8

Which of the following gases was most likely present in earth's earliest atmosphere

Biology
1 answer:
dexar [7]3 years ago
8 0
Hydrogen is the right answer
You might be interested in
I
jekas [21]

a) volume in cm³ = 20 × 42 × 42 = 35280 cm³

b) volume in m³ = 0.2 × 0.42 × 0.42 = 0.03528 m³

c) volume in ml³ = 200 × 420 × 420 = 35280000 ml³

d) volume in litres = 0.02 × 0.042 × 0.042 = 0.00003528 l³

e) Density = Mass / Volume

Mass = Volume × density

= 0.00003528 × 1

= 0.00003528 × 1000

= 0.03528 grams

f) Mass in kilo gram = 0.00003528 kg

3 0
3 years ago
how are mitosis and meiosis different from each other? a. mitosis produces four different cells and meiosis produces identical c
Fofino [41]
B. meiosis produces cells that are used in reproduction.
3 0
3 years ago
What the differences between reproductive system and reproduction?​
amid [387]

Answer:

<em>Reproduction</em> refers to the production of offspring.

The <em>reproductive system</em> consists of the sex organs that is needed for reproduction to happen.

4 0
3 years ago
What is the process known as "fight", flight, or "freeze" response?
Anvisha [2.4K]

Answer:  However, less well-known is the fight-flight-freeze response, which adds a ... Here, in brief, is how the survival-oriented acute stress response operates. ... needed to “process” emotional and physical completion, or release, ... Tried therapy, but never got to the point where I could actually talk to the therapist.

Explanation:

5 0
3 years ago
Read 2 more answers
The heat needed for chemical reaction to take place is called _____.
zavuch27 [327]
What is the options ..............
5 0
3 years ago
Other questions:
  • Whats the purpose of the digestive system?
    10·2 answers
  • What is the biogeochemical cycle that describes the movement of oxygen within and between its three main reservoirs?
    5·1 answer
  • Which is a nucleic acid? ATP NH2 CH4 RNA
    9·2 answers
  • You want to determine the likely clinical course and possible complications for a sprinter who had a release for acute compartme
    6·1 answer
  • Identify the pregnancy prevention method(s) that prevent the release of an egg, thickens the cervical mucus and reduces the buil
    12·1 answer
  • When one neuron has several axon collaterals that communicate with several other neurons, it is called divergence.?
    9·1 answer
  • The image shows a cross section of a volcano.<br> Which number shows the magma chamber?
    13·2 answers
  • 2. Which of these could be caused by a single-celled organism?
    12·2 answers
  • Which is an advantage of a natural-gas-burning power plant over an oil-
    13·1 answer
  • List the order of the following layers from outermost to innermost of a root:
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!