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butalik [34]
3 years ago
9

From what sources did water arrive in Earth’s atmosphere?

Biology
1 answer:
dolphi86 [110]3 years ago
4 0

However, in Earths First Billion years and over the past 4.5 billion years, the main source of water was from comets. We know that comets consist chiefly of chemical compounds that are either gases or liquids at earth-surface conditions: methane is one common component of comets and water is another.

hope it helps :)

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Need the Answer ASAP
egoroff_w [7]

Sexual reproduction produces genetically different offsprings which do possess variations, hence better chance to survive in the environment.

Option C

<h3><u>Explanation:</u></h3>

Sexual reproduction is the process of reproduction where there's a fusion of gametes from a male and female of the same species, resulting in a zygote and eventually an offspring. Sexual reproduction is very advanced type of reproduction which is very expensive for an organism. Much of the energy of the organism is spent to produce gametes and other necessary processes for reproduction.

Gametes of the sexual reproduction is produced mainly by means of meiotic cell division. This involves crossing over and chaismata formation which helps in genetic variations in the offspring. These variations help the species to survive unknown changes in environment, and helps to adapt quickly lessening the chances of extinction. So sexual reproduction has modified various times in different groups of species.

8 0
3 years ago
What are the reactants for oxidation reaction?
Alexxx [7]

The reactant that brings about the oxidation is called the oxidising agent, and that reagent is itself reduced by the reducing agent.

Oxidation occurs when a reactant loses electrons during the reaction. Reduction occurs when a reactant gains electrons during the reaction. This often occurs when metals are reacted with acid.

Oxidation is loss of electrons (OIL RIG). Therefore, an oxidising agent takes electrons from that other substance. Therefore, an oxidising agent must gain electrons.

Oxidation happens when an atom loses one or more electrons during a chemical reaction, meaning that its oxidation number increases. This is because the atom loses the negative charge of the electron, which is similar to gaining a positive charge, increasing the oxidation number.

To know more about oxidation click here

brainly.com/question/25886015

#SPJ4

6 0
1 year ago
49. Explain why all the wavelengths cannot enter the earth's atmosphere?
hjlf

Answer:

All the wavelengths can not reach the earth's surface always.

Explanation:

Most of the time the atmosphere absorbs the Infrared radiation from the space.  For this reason, infrared radiation can not reach the earth always. It is basically absorbed by the Co2 and water vapor present in the atmosphere.

8 0
3 years ago
What do scientists call regions of Earth that contain an unusually large number of species that are threatened by habitat loss?
zepelin [54]
Hey You!

I believe the correct answer to your question is: Endangered Species. (Also called threatened species).

I Really Hope This Helped You, Good Luck With Your Studies! =)
3 0
3 years ago
Read 2 more answers
Where does the blood go when its pumped out of the right ventricle?
aivan3 [116]

Answer:

the right ventricle pumps the oxygen-poor blood to the lungs through the pulmonary valve.

6 0
3 years ago
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