What is the primary justification of the hypothesis that the early Earth environment was void of oxygen

Answers

Answer 1

The justification hypothesis that the early Earth environment was void of oxygen is:

atmosphere lacked oxygen but abundant in methane, ammonia, water vapour, noble gas, neon etc.

What did scientist proved about oxygen-less earth?

Studies revealed that the Earth's atmosphere was devoid of oxygen before more than 2.4 billion years ago.

However, some scientist proved that oxygen get brewing in the atmosphere from the oceans where a cyanobacterial photosynthesis occurred for about as 3 billion years ago.

Read more about Earth environment

brainly.com/question/617302


Related Questions

who is an astronomer?

Answers

An astronomer is a scientist in the field of astronomy who focuses their studies on a specific question or field outside the scope of Earth. They observe astronomical objects such as stars, planets, moons, comets and galaxies – in either observational (by analyzing the data) or theoretical astronomy.

Question 13. 3:

Try the following values for vertical exaggeration: 0. 5, 1, and 3. How did each value affect the

visualization of the terrain? In addition to the value of 2 you examined in Question 13. 2, which

value of vertical exaggeration was the most useful for a visual representation of Zion and why?

Answers

A vertical exaggeration simply means a scale used in maps to emphasize vertical features.

What is vertical exaggeration?

It should be noted that your information is incomplete. Therefore, an overview of vertical exaggeration will be given.

In this case, a vertical exaggeration is a scale that is used in raised-relief maps and technical drawing to emphasize vertical features that may be too small to be identified relative to the horizontal scale.

Learn more about map on:

https://brainly.com/question/25922463

What type of map would this scale be 1:15,000,000? Explain your reasoning.

Answers

Answer:

ExWhat does 1 250000 on a map mean?

There is a standard ratio format for map scales e.g. “1: 25,000”. The first number is the unit on the map and the second number is the distance in real life of the same unit so 1: 25,000 means that 1cm on the map corresponds to 25,000 cm on the groundplanation:

1. What is the world's largest desert?​

Answers

Answer:

The Sahara is the world's largest desert; it extends across most of the northern part of Africa.

Explanation:

Answer:

THE SAHARA IS WORLD LARGEST DESERT.

why doesn't the dead sea and the fresh water sea never mix? Explain with own answers.

Answers

Due to the densities and saltiness of each water, they won’t mix. Different densities will not mix

according to the philippines department of energy, how many renewable energy resources are generated form geothermal power plants?

Answers

About 20 percent of renewable energy resources are generated from the geothermal power plants according to the philippines department of energy.

What is a geothermal power plants?

These are plant that uses geothermal energy (heat and water from earth) to generate a clean electricity for the society.

These geothermal power plants is a known source for clean electricity because its does not increase carbon print on earth.

Therefore, the Option B is correct.

Missing options "A. 10 percent B. 20 percent C. 30 percent D. 40 percent​"

Read more about geothermal power plants

brainly.com/question/1197584

Which country shares a border with Mexico?

Honduras


Guatemala


Costa Rica


Puerto Rico

Answers

Answer:

Guatemala

Explanation:

Answer:

I would say the answer is Quatamala

Explanation:

hope it helps even though that's my other account asking the answer but lol still


PROJECT: HISTORICAL EVENTS AND POPULATION GROWTH

OBJECTIVES
Analyze the impact of population growth in India.
Understand the meaning, implication, and impact of historical events.
Use appropriate formatting, graphics, and media to introduce and organize a topic.
Use precise language and vocabulary to convey a style appropriate to the discipline.
pls help it’s due tonight

Answers

This isn’t an answer but I could help you if you tell me the project requirements

And is it in slides from or essay?

The different physical features that make up the ocean floor are

Answers

Answer:

 seaweed, the creatures, salt, sand

Explanation:

Which of the following scenarios best illustrates the phenomenon of oceans
acting as highways rather than barriers?
A. People on remote islands being culturally isolated
B. The national languages of Canada being English and French
c. American Indians using local materials to build houses
D. The popularity of fishing in parts of the Great Lakes

Answers

Answer:

That would be B. The national languages of Canada being English and French

hope this helps

What is the average GDP per capita in Nicaragua?


A- $3,000
B-$5,000
C-$11,000
D-$18,000

Answers

The average Gross Domestic Product per capita for the people living in Nicaragua is A. $3,000.

What is GDP?

It should be noted that gross domestic product simply means the monetary measure of the overall economic activity in a country.

In this case, the average GDP per capita in Nicaragua is about $3,000. This was deduced by Economists.

Learn more about GDP on:

https://brainly.com/question/1383956

Answer:

It is B just got 100%

Explanation:

Why are the rich developed countries rich and why are the poor countries poor? Please answer thankyou!!​

Answers

Answer:

make sure have a right question

Each layer of the geosphere has a different composition. What element makes up most of Earth's crest?

Answers

I’m not sure I but I think oxygen sorry if I’m wrong but 85% sure

Why is it considered courageous for the musicians to play
"under the open sky"?
SELECT AN ANSWER
A. It is a war zone.

B. People may not attend the concert.

C. Too many orchestra members have fled.

D. The music may not be loud enough to hear.

Answers

The reason why it is considered courageous for the musicians to play

"under the open sky" is because they are facing a dangerous situation.

What is Courage?

This refers to the quality that means that there is the strength to face fear and do the right thing.

Hence, it is important to note that for someone to display courage, then that means that they are facing threats or fear and need to overcome it.

Please note that your question is incomplete so I gave you a general overview to help you get a better understanding of the concept.

Read more about courage here:

https://brainly.com/question/26489684

BRAINLIEST TO CORRECT ANSWER!!!


Which geologic feature results from seafloor spreading?

O A. Mid-ocean ridges

O B. Large inland lakes

O C. Hot spots

OD. Ocean trenches​

Answers

Answer:

The answer is A. Mid- Ocean ridges

Explanation:

They end up cracking and spliting after awhile.

the answer is A i think

a number cube with faces labeled from 1 to 6 will be rolled once what is the event of rolling a number less than 2

Answers

Answer:

2/6

Explanation:

What are the rules for converting the barometric pressure to be put on a station model

Answers

Some of the rules for converting the barometric pressure to be put on a station model are:

If the air pressure on the station model is 500 or more, place a 9 in front of this numberIf the air pressure number on the station model is less than 500 add a 10 in front of the number.

What is a Barometer?

This refers to an instrument that is used to measure atmospheric pressure and is also used in weather forecasts.

Hence, we can note that there are set rules that are used when converting the barometric pressure to be put on a station model and some of them include placing numbers if the air pressure for the station number exceeds a certain amount.

Read more about barometers here:

https://brainly.com/question/24939205

Which beach is located in the northern hemisphere?.

Answers

Answer:

Cannon Beach

Explanation:

Cannon Beach is a small coastal city in northwest Oregon. It’s known for its long, sandy shore. Standing tall in the ocean, Haystack Rock is a seasonal haven for tufted puffins. On a headland to the north, trails in Ecola State Park offer sweeping views of the ocean, coves and a lighthouse.

coal is another fossil fuel often found ____ oil and natural gad reserves

Answers

Answer:

Sediment Rocks?

Explanation:

Coal, oil, and natural gas are examples of fossil fuels.  Coal is a material usually found in sedimentary rock deposits where rock and dead plant and animal matter are piled up in layers.

If there's a A, B, C, D answer tell me if its not on there! Thanks!

Explain the characteristics of temperate climate -warm and cool

Answers

Answer:

Brainliest pls

Explanation:

Temperate climates are generally defined as environments with moderate rainfall spread across the year or portion of the year with the sporadic drought, mild to warm summers, and cool to cold winters

mild to warm summers:

What enabled easy trade between new england and the caribbean?
a. advances in shipbuilding
b.favorable ocean currents
c. new mapping techniques
d. monoculture of sugarcane

Answers

Answer:

B. Favorable ocean currents

Explanation:

1 of 21
VOLUME
A company designs a salt shaker in the shape of a square pyramid. The pyramid has a height of 20 millimeters and a base with side
lengths of 15 millimeters.
The company must also design a pepper shaker in the shape of a cone. The pepper shaker must have the same volume and helght as
the salt shaker
What should be the rádius, in millimeters, of the cone. Round your answer to the nearest hundredth.

Answers

The company should design the radius of the cone to be 8.46 mm to the nearest hundredth.

What is the volume of a square-based pyramid?

The volume if a square-based pyramid is calculated using the formula below:

Volume = A×h/3

where:

A is the area of the base

h is the height of the pyramid

Also;

Volume of a cone is calculated using the formula below:

[tex]v = \frac {\pi r^{2}h}{3}[/tex]

The area of the pyramid = 15 × 15 × 20/3 = 1500 cubic millimetres

Therefore height and volume of the cone is 20 mm and 1500 cubic millimetres respectively.

The radius of the cone, r will be:

[tex]r = \sqrt{\frac{3× 1500×7}{22×20}} = 8.46 mm[/tex]

Therefore, the radius of the cone will be 8.46 mm to the nearest hundredth.

Learn more about radius of a cone at: https://brainly.com/question/26034573

What are some properties of the four categories of stars? • Supergiants: • Giants: • Main sequence: • Dwarfs:

Answers

Answer:

Characteristics used to classify stars include color, temperature, size, composition, and brightness.

Explanation:

Answer:

The Supergiants are cool stars, which are very large and very bright. They are located towards the top right of the graph. The Giants are cool stars, which are a little smaller and dimmer than the Supergiants. The White Dwarfs are very hot stars, which are small in size and relatively dim.

Explanation:

The Supergiants are cool stars, which are very large and very bright. They are located towards the top right of the graph. The Giants are cool stars, which are a little smaller and dimmer than the Supergiants. The White Dwarfs are very hot stars, which are small in size and relatively dim.

Tim installs 45 square feet of his floor in 50 minutes. At this rate, how long does it take him to install 495 square feet?

Answers

Answer:

550 minutes

Explanation:

45/5=9 and 50/5=10

9 square feet per 10 minutes

495/9=55

^total square feet divided by square feet per 10 minutes. Quotient shows the amount of times the 9 square feet per 10 minutes cycle is repeated meaning we multiple 55 by 10.

55*10=550 minutes

PLEASE HELP ME ! whats the meaning of life ?

Answers

Answer:  the condition that distinguishes animals and plants from inorganic matter, including the capacity for growth, reproduction, functional activity, and continual change preceding death. the existence of an individual human being or animal.

Explanation:

The formation of rock fragments and soil is most likely the result of:.

Answers

Answer:

Erosion

Explanation:

Erosion is a natural occurance that whittles away at exposed rock formations in the earth's crust. The most obvious forms or erosion are from water and wind.

For example, a soft porous rock such as sandstone will erode faster than a harder rock like granite. Sandstone is more likely to erode into sand (soil) and slate is more likely to split off as rock fragments.

Answer:

weathering

Explanation:

Which of the following is located in the Northern Hemisphere?

A) Mexico

B) the United States

C) Canada

D) All of these

Answers

Answer:

D: All  of these

Explanation:

Mexico: Mexico is in the continent of North America. This means it is in the Northern hemisphere of the Earth

The US: The united states is considered northern and western hemisphere.

Canada:  By looking at a map, we can see that canada is in the northern hemisphere

helpppppppppppppp pleas

Answers

hello!
answer:
1. Columbia
2. Venezuela
3. Peru
4. Brazil
5. Chile
6. Argentina

i hope this helps you!

PLS HELP ME ASAP I WILL MARK THE BRAINLIEST

Answers

Answer:

Refugees, Availability or lack of arable land, A, GND/GDP, and birth rate is higher than death rate

Explanation:

I'm not sure about the last one, so u should probably look that one up.

Answer:

refugees, arable land, GDP, b/d

True or false in addition, people harnesses the power of renewable resources. Such as wind and water

Answers

Answer:

I think your answer is true

Explanation:

We have many hydro-electric resources and wind farms throughout the world

Hope this helps :)

Other Questions
The following function represents the production cost f(x), in dollars, for x number of units produced by company 1:f(x) = 0.15x2 6x + 400The following table represents the production cost g(x), in dollars, for x number of units produced by company 2: negative decimals on the number line 5 What text structure is used to describe how something has changed over time?A. chronological orderB. comparison-contrastC. cause and effectD. problem-solution Which type of fuel can only be used in certain geographic areas?O A. NuclearO B. BiomassO C. CoalO D. Wind Read the scenario.A biologist is studying golden frogs that live in cool streams running through the rain forests of Central America. The biologist conducts a survey of the population and counts over 100 frogs in one mile of stream. The biologist returns to the same location one year later and counts only 20 frogs in that same stretch of stream. The biologist wonders why there are suddenly so few golden frogs.The biologist also observes that a mining company has set up a copper mine only a few miles from the stream. By reading studies on copper mining operations in other parts of the world, the biologist learns that the wastewater runoff from the mines is highly acidic and contains potentially toxic compounds.Which question most closely relates to the biologist's observations and collected data?Are the golden frogs succumbing to a fungal infection? Based on the passage, which is the best inference? poole dislikes his employer, mr. Jekyll. Poole distrusts the lawyer, mr. Utterson. Mr. Utterson suspects that hyde delivered the letter. Mr. Utterson does not expect pooles response Find the area of a circle with a radius of 21 inches. Use 22/7 for pi . Can someone help me please!!? Cells that function in storage or photosynthesis are:. Eliminate the parameter.x = 5t, y = t + 8 (2 points) math problem answer sceenshot please Suppose you are interested in studying whether temperature affects spatial reasoning abilities. You decide to test spatial reasoning using completion time scores for the paper-folding test with five people, repeating the test on each person with three different temperatures (40 degrees, 60 degrees, and 80 degrees Fahrenheit). In this experiment, the null hypothesis is that: a. There are no differences in the mean completion times among the temperatures compared b. There are no individual differences in the completion time means c. The completion time mean for at least one temperature is different from another The factor of interest is the ____________, and the dependent variable is the ___________ compare and contrast the ancient tales king david's crime and if not higher. The rulers of Spain, King Ferdinand and Queen Isabella, wanted everyone in their kingdom to be Some organisms are descended from only one parent. What is the name for this type of reproduction? Explain what Schwartzberg says about time-lapse photography and why it never gets old for him. Find YW, would it just be 6? 1/2 of 4/5 as a fraction What are the essential components of successfully competing in the field events:Power, technique, and timingPower, speed, and strengthTechnique, flexibility, and speedNone of the above He said, "I have brought the book." (inderect speech)