During the Precambrian, Earth's first atmosphere is theorized to have been composed of a poisonous mixture of helium and hydrogen gases. When Earth's crust began to cool, the makeup of the atmosphere changed.

Answers

Answer 1

Answer:

Yes.

Explanation:

Yes, early Earth's atmosphere was formed from the poisonous mixture of helium and hydrogen gases. But with the passage of time when Earth's crust began to cool, the composition of the atmosphere changed and carbondioxide and water concentration in the atmosphere increases due to carbondioxide gas emission from the volcanoes and evaporation of water from water bodies present on the surface of earth.


Related Questions

A dam created with waste rock from surface mining is called a(n) __________.
A)
interglacial period
B)
valley fill
C)
placer deposit
D)
sanitary landfill
E)
ore deposit

Answers

I got D
Hoped this helped

Answer:

i believe it's C

Explanation:

How are resources allocated?

Answers

Answer:

In economics, resource allocation is the assignment of available resources to various uses. In the context of an entire economy, resources can be allocated by various means, such as markets, or planning.

Explanation:

Hope this helps :)

This is the chemical reaction that occurs duting photosynthesis, identify which of these is a product in this chemical
reaction

Answers

i believe the answer is oxygen

What kinds of measurements do meteorologists put on weather maps?

Answers

Answer:  Meteorologists use weather maps to forecast the weather. A HYGROMETER measures the water vapor content of air or the humidity. A WEATHER BALLOON measures weather conditions higher up in the atmosphere. A COMPASS is a navigational instrument for finding directions.

Explanation:

When does the mountain banshee become prey?

Answers

Answer:

Mountain banshees are large, dragon-like aerial predators Bonding with a banshee and becoming an Ikran Makto is dangerous and required  the banshee or its rider can bond with a new partner should the previous one die

Explanation:

The mountain banshee is a dragon like predator that is due to the fact their predators are larger in size.

What is a  mountain banshee?

A mountain banshee is a large dragon-like aerial predator and is native to pandora. The creature is used for hunting and to travel larger distances.

As the Ikran are also used in battle they are enemies of the species and can attack the open air. They thus become prey to this species as they are much larger in size.

Find out more intimation about the mountain banshee.

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Explain the concept Conservation of Matter

Answers

Answer:

Concept of Conservation: Matter cannot be created or destroyed. Matter can only change forms!

Explanation:

conservation of matter - a fundamental principle of classical physics that matter cannot be created or destroyed in an isolated system

2 for 1!!! PLEASE HELP
The nucleotide not found in RNA is:
Adenine
Thymine
Guanine
Cytosine
Uracil
---------------------------------------------------
The five carbon sugar found in DNA is:
Deoxyribose
Ribose
Glucose
Fructose

Answers

Answer:

RNA: Thymine, DNA: Deoxyribose

Explanation:

Hope this helps:)

What is the answer for this one?

Answers

Answer:

Explanation:lol I n

Which of the following does NOT indicate a chemical reaction occurred?

A
A gas being produced

B
A solid being formed

C
A change in temperature

D
Temperature staying the same

Answers

Answer:

D Temperature Staying The Same

Explanation: Some indicators of a chemical reaction occured are a solid being formed, a flame being formed, a temepature change, a gas being formed, a change in color ect. Temperature staying the same is not one.

D. temperature stayed the same.

it doesn’t show any change, whereas something being produced, formed and a change in temp. all show that some chemical reaction is present. :)

5. Which of the following about Mendel's Law of Segregation is false?
a. It states that each of two alleles for a given trait segregate into different
gametes

Answers

Explanation:

Each gamete has an equal probability of containing either allele.

I need help on this question

Answers

Answer:

B

Explanation:

Because the turtles are testudines.

The answer to the question is A

yo yo i um need some help asap

Which two individuals of generation III would have a higher probability of offspring with the trait of interest, shown in black?

A.) 11 and 12

B.) 13 and 14

c.) 11 and 16

D.) 14 and 18

Answers

Answer:11 and 16 on edu

Explanation:

Answer:

C for the first question, B for the second

Explanation:

Would a cross of two
dwarf-height pea plants pro-
duce regular-height offspring?
Hint: Use a Punnett square to
determine the answer

Answers

Answer:

no

Explanation:

in the punnet square, your results would be 4 dd. 100% chance of a dwarf sized plant

10. What do prokaryotes use cell division for? Mark all that apply.
I Growth
Reproduction
W Repair
m Development

Answers

I think that snajejfkfjf your answer would be repair

describe why the marine environment is the least stressful for cells to survive in.​

Answers

The marine environment is the least stressful for cells to survive in due to the many different interchanging life cycles. Due to the diversity of the ocean, many species release eggs and sperm into the water. This allows for new species to form and for other cells to be nourished.

- What is the role of mRNA in expressing specialized structures?
F Making energy available for cellular activities
G Creating bonds to form biomolecules
H Producing sugars that assist with replication
J
Providing information to form proteins

Answers

Answer:J providing information to form proteins

Explanation:

The role of mRNA in expressing specialized structures is providing information to form protein. The correct option is J.

What is mRNA?

Messenger ribonucleic acid is a single-stranded RNA molecule that equates to a gene's nucleotide makeup and is read by a ribosome during the protein polymerization reaction.

The function of mRNA is to transport protein details from the nucleus of a cell to the cytoplasm.

Here the protein-making equipment likes to read the mRNA sequence as well as translates each three-base codon into the corresponding amino acid in a burgeoning protein chain.

Messenger RNAs are single-stranded molecules that move genetic information from the nucleus to the cytoplasm, in which proteins are sequenced.

Thus, the correct option is J.

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Place the following molecules in order starting from the smallest

Answers

I think it would be (from smallest to biggest) this info is from various sources and scientific PDFs
1Glucose=1nanometer
2Protein=10nanometer
3Disaccharides= 200+nanometer
4Starch=1000+nanometer

The molecules that are given below from the smallest to the lowest will be glucose, protein, disaccharides, and starch.

A molecule simply refers to the smallest particle that can be found in a chemical element. It should be noted that the molecule has the chemical elements exactly as the elements or compounds.

Molecules consist of one or more atoms. Examples of molecules include CaO (calcium oxide), NaCl (table salt),

From the options given, it should be noted that the nanometer of glucose is the smallest when it's compared to others. Starch has the largest nanometer. A nanometer is a unit of measurement.

In conclusion, the correct option from the smallest will be glucose, protein, disaccharides, and starch.

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Most of the animals in existence today had their origins during the:

A. Mesozoic Era
B. Cambrian Period
C. Cretaceous Period
D. Devonian Period

Answers

Answer:

answer is B

Cambrian period

Answer:

the answer is b

Explanation:

Theres an old man needed your help but you are soo late in your work.What would you do?explain it briefly.​

Answers

Answer:

I will help him first

Explanation:

because it's our duty to help elders .

someone helppppp which one is it

Answers

Answer:

The orange box

Explanation:

It is the most reasonable for the plant base orginism

The orange yellow box I believe

What is medication? Choose all that apply.

a medicine or drug
comes only in tablets
an agent to cure
an aid for diagnosis

Answers

Answer:

1,3,and 4

Explanation:

Answer:

1. a medicine or drug

3. an agent to cure

4. an aid for diagnosis

Took the assignment on edge 2021

Mary Jane's red hair is a recessive trait. If Peter is heterozygous for hair color, what is the chance their baby will have red hair?

A: 3/4
B: 2/4
C: 1/4
D: 0

Answers

the answer is C: 1/4.

- DNA contains four types of nitrogenous bases. One of these bases is

A.)thymine.

B.) glucose.

C.) ribose.

D.) uracil.

Answers

Answer:

thymine

Explanation:

the answer is thymine I'm 100% sure

the answer is a) thymine

1. Write the equation for cellular respiration.
- Label the side with the reactants and the side with the products.

Answers

Answer:

C6H12O6+ 6O2 -> 6CO2 + 6H2O

Explanation:

Fermentation does not produce ATP. Why is fermentation such an important process in cells

Answers

Answer:

In humans we go through Lactic Acid Fermination

Explanation:

It is important because after glycolysis we have the elctron carrier NAD+ reduced to NADH and we cant continue glycolysis until we have NADH back to NAD+ so all lactic acid fermintation does it removed the electron and allow glycolysis to continue. It should be noted that fermintation occurs when there is no oxygen / not enough to continue cellular respiration so we rely on glycolysis to produce very little ATP while oxygen is replenished,

What is the approximate length of the geologic time scale?

Answers

The answer would be 4.6 billion years

all you need is in the photo ​

Answers

Answer:

primary

Explanation:

Primary succession occurs when new land is formed or bare rock is exposed, providing a habitat that can be colonized for the first time. For example, primary succession may take place following the eruption of volcanoes, such as those on the Big Island of Hawaii. As lava flows into the ocean, new rock is formed.

explain how ground water is recharged? ​

Answers

Explanation: Natural groundwater recharge occurs as precipitation falls on the land surface, infiltrates into soils, and moves through pore spaces down to the water table. Natural recharge also can occur as surface-water leakage from rivers, streams, lakes, and wetlands.

Answer:

Groundwater is recharged naturally by rain and snow melt and to a smaller extent by surface water (rivers and lakes). Recharge may be impeded somewhat by human activities including paving, development, or logging.

Explanation:

plz answer asap 1st gets brainliest
7. Products like Tums neutralize stomach acid because Tums is a a. neutral. b. base. c acid. .​

Answers

Answer:

A base.

Explanation:

base+acid=neutral

Which of the following two statements support the claim that viruses are nonliving?


a
a. Viruses evolve
b
b. Viruses contain a genetic code
c
c. Viruses lack machinery for reproduction
d
d. Viruses contain structures made of proteins
e
e. Viruses cannot make their own chemical products.

Answers

Answer:

c. Viruses lack machinery for reproduction

Explanation:

brainiest plz

Answer:

B. Viruses cannot lack machinery for reproduction.

Explanation:

Viruses cannot reproduce without a host. However, once they have their host they insert their own genetic codes (protien), and they replicate.

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