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
bagirrra123 [75]
3 years ago
15

Identify the by-products of the atmosphere. Briefly state where and how it is formed​

Biology
1 answer:
Tanya [424]3 years ago
6 0

Answer:

Earth’s original atmosphere was probably just hydrogen and helium, because these were the main gases in the dusty, gassy disk around the Sun from which the planets formed. The Earth and its atmosphere were very hot. Molecules of hydrogen and helium move really fast, especially when warm. Actually, they moved so fast they eventually all escaped Earth's gravity and drifted off into space.

Earth’s “second atmosphere” came from Earth itself. There were lots of volcanoes, many more than today, because Earth’s crust was still forming. The volcanoes released:

1) steam (H2O, with two hydrogen atoms and one oxygen atom),

2) carbon dioxide (CO2, with one carbon atoms and two oxygen atoms),

3) ammonia (NH3, with one nitrogen atom and three hydrogen atoms).

Much of the CO2 dissolved into the oceans. Eventually, a simple form of bacteria developed that could live on energy from the Sun and carbon dioxide in the water, producing oxygen as a waste product. Thus, oxygen began to build up in the atmosphere, while the carbon dioxide levels continued to drop. Meanwhile, the ammonia molecules in the atmosphere were broken apart by sunlight, leaving nitrogen and hydrogen. The hydrogen, being the lightest element, rose to the top of the atmosphere and much of it eventually drifted off into space.

Now we have Earth’s “third atmosphere,” the one we all know and love—an atmosphere containing enough oxygen for animals, including ourselves, to evolve.

So plants and some bacteria use carbon dioxide and give off oxygen, and animals use oxygen and give off carbon-dioxide—how convenient! The atmosphere upon which life depends was created by life itself.

Explanation:

You might be interested in
Use the mechanisms of meiosis to explain why most mules are sterile.
Tema [17]

Answer:

3. An even number of chromosomes are required for synapsis during prophase I and proper pairing during metaphase

Explanation:

Mules are hybrids of a cross between a female horse and a male donkey. Horses contain 64 chromosomes while donkeys contain 63 chromosomes in their somatic cells respectively. This means that they each produce 32 and 31 chromosomes respectively during meiosis. A mule, hence, contains 32+31= 63 chromosomes in their somatic cells.

This chromosome number in mules are uneven for meiosis to occur because meiotic division requires that an even number of homologous chromosomes pair together in a process called SYNAPSIS during prophase I of meiosis I. This is impossible in a mule because of the uneven number of chromosomes in its cells.

Also, during metaphase of meiosis, the homologous chromosomes need to be properly aligned at the equator for separation to occur. This is also impossible in a mule considering the number of chromosomes that don't add up.

Due to this reason of unevenness in the number of chromosomes present in a mule, meiosis will not occur and if meiosis (gamete formation) does not occur, reproduction cannot take place. Therefore, the mule is a sterile species i.e. cannot produce offsprings via sexual reproduction.

4 0
3 years ago
What is the product P?
Maslowich

Answer:

energy is the product P

3 0
3 years ago
Read 2 more answers
What is the difference between a alligator and a crocadile?
Angelina_Jolie [31]

Answer:

One will eat humans and the other won't and their snouts an Alligator's snout is long and narrow and a Crocodile's snout is short and wide

Explanation:

8 0
3 years ago
Read 2 more answers
Which of the following is the best theme statement
serg [7]

Answer:

Revenge comes at a great cost.

Explanation:

<em />

7 0
3 years ago
What role does role do fish have on india.
Tema [17]

Answer:

The fish in India provides protein and has a huge source of vitamin A, B, and D. There are about 30,000 species of fist in the world out of which about 18000 are found in India. Fish also forms an important part of diet of the people living in the coastal areas of Kerala, West Bengal, Andhra Pradesh, Tamil Nadu, Maharashtra, Karnataka, Goa, and Gujarat. Fish attracts many people in India because it is cheap in cost and highly nutritious.

4 0
3 years ago
Other questions:
  • According to the simulation, _______ helps predators to survive by allowing them to sneak up on their prey. a. camouflage b. mim
    5·2 answers
  • Bone formation begins when ____________ secrete the initial semisolid organic form of bone matrix called ____________ .
    7·1 answer
  • Why are enzymes important to cells? they help bring about chemical reactions. they store large quantities of energy. they provid
    8·2 answers
  • Erve cells nerve cells are long, thin cylinders along which electrical disturbances (nerve impulses) travel. the cell membrane o
    11·1 answer
  • A scientist receives a seed sample from a plant growing in an unknown location and discovers that prolonged cold treatment is ne
    7·1 answer
  • In peas, the allele for yellow seeds (Y) is dominant to the allele for green seeds (y). What would be the genotype and phenotype
    5·1 answer
  • Correctly label these important genetic terms as seen in this Punnett square.
    8·1 answer
  • QUESTION 47
    13·1 answer
  • The neurons of patients with multiple sclerosis are unable to transmit action potentials down the axon. how will that affect ske
    13·1 answer
  • B. How do the roots of the trees may help in controlling soil erosion?
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!