Beginning with plant material, list the successive stages of coal development.
Answers
Answer:Plant material, lignite, sub-bituminous, bituminous, and anthracite
Explanation: Decomposing plant material over time and under pressure forma lignite which is a very dirty type of coal. As time and pressure increase, more energy is released and the trend points that there are less pollutants when it is burned!
Related Questions
Identify two characteristics shared among transverse waves, longitudinal waves, and surface waves.
Answers
Answer: For transverse waves, the waves move in perpendicular direction to the source of vibration.
For longitudinal waves, the waves move in parallel direction to the source of vibration .
They are similar within the sense that energy is transferred within the kind of waves.
Explanation:
The shared characteristics between traverse, longitudinal and surface waves include :
Traverse, longitudinal and surface waves are all mechanical waves They only transport energy without transporting matter.Mechanical waves are simply waves which requires a material medium to propagate. They include longitudinal, surface and traverse waves.
Also, all three waves transfer energy through a medium without the transfer of materials or matter in the medium.
Therefore, all three waves are mechanical waves and do not transfer matter.
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Could hydrogen fuel replace fossil fuels in the future? Why or why not?
Answers
Answer:
Hydrogen is the most plentiful element in the universe, so there’s no chance for human consumers to instantly use it up. So yes, hydrogen has the possibility of being the fuel source of the future.
Explanation:
How to work out the relative mass of potassium? What is the calculation? ( explained very easily )
Answers
Answer:
39
Explanation:
Relative mass does not need to be calculated as it is listed on the periodic table. Potassium's relative atomic mass is around 39.
———————————
(1/12)th Mass of one C12 atom
Which statement explains why scientists classify organisms into groups based on shared characteristics?
Group of answer choices
Classification helps scientists understand the relationships between different species.
Classification helps scientists understand how the parts of a cell work together.
Classification helps scientists understand the chemical reactions that are necessary for organisms to live.
Classification makes it easier for scientists to study certain groups of organisms.
Answers
Answer:
It's the last one PLEASE MARK BRAINLIEST
Answer:
Classification makes it easier for scientists to study certain groups of organisms.
The diagram above shows the repeating groups of atoms that make up two samples. Both samples are liquid at room temperature. Will the properties of the two samples likely be the same or different? (Examples of properties are smell, color, and the temperature at which a substance melts.)
Answers
Answer:
Different.
Explanation:
If you look at the bottom you can see that the bonds are in different cohesions and the molecules have a quad bond and not a tri bond. Atoms defuse ( the process in this photo is diffusion) and the smell, color, and temperature will change.
Which simple machines make up scissors?
A) one lever and one wedge
B) two levers and two wedges
C) one inclined plane and two pulleys
D) two inclined planes and two levers
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i have no idea what I'm supposed to do but apparently you need to use table D for table E, i will give brainly to someone if they actually help me :)
Answers
Explanation:
It most likely telling you how to work it out and try to find the key word, if not try to see how much each percent is, and you can try and break it up a little. (I hope that helped you out)
Help Please. It's On Erosion. 15 Points
Answers
Notice the clear water.
Chemical Weathering Rocks are changed by chemical and physical weathering. During chemical weathering, the composition of the rock is changed. Extreme heat and pressure within Earth can also cause rocks to change chemically. Physical weathering is the breaking down of rock by wind, water, ice, temperature change, and plants. It changes the shape and size of rocks, but it does not change their properties.
circle each example of chemical weathering
•Shale is worn into small pieces by the wind.
• Sandstone experiences heat and pressure and becomes quartzite.
• Calcium carbonate dissolves.
• Rocks break into pieces as they tumble down a mountain.
Answers
An example of chemical weathering are;
Sandstone experiences heat and pressure and becomes quartzite. Calcium carbonate dissolves.What is Chemical Weathering ?Chemical Weathering can be described as the type of weathering that do take place due to the breaking down of the rock particles into smaller pieces which is usually as a result of chemical process.
It should be noted that when the process is taking place it scould be due to the Extreme heat and pressure which can affect the composition of the particles and as a result of this there could be formation of products from the break down.
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Sandstone experiences heat and pressure and becomes quartzite
Calcium carbonate dissolves
These are both examples of chemical weathering because the composition of these things changed. When shale is worn into small pieces, it is still shale, and rocks breaking into pieces as they tumble down a mountain are both examples of physical weathering because the weathering is not changing the composition of the rock.
19.60g of phosphoric acid is neutralized by 500g solution of sodium hydroxide.
a. Find the mass of the obtained salt.
b. Find the percent by mass of the solution of sodium hydroxide
Answers
Answer:
A. 519.60g
B. 96.2%
Explanation:
B 96.2 that’s it
Help!! "Hotter things have more energy than colder things" How can you revise the statement to be more complete or correct?
Answers
Answer: Hotter things have more heat energy than colder things. That's because the atoms or molecules move around faster in hot things (red, right) than they do in cold things (blue, left). ... The more heat you supply, the faster the molecules move and the further apart they get.
Explanation: I had a test on this a while ago and this was correct.
Answer: Hotter things have more heat, creating energy for that item/thing., and a hotter item/thing., has more heat than a cold(er) item/thing.
Explanation:
Sounds with a small amount of energy travel _________distances than sounds with more energy.
Lesson 4.07
Question 7 options:
shorter
medium
same
longer
Answers
Answer:
longer
Explanation:
this is because sounds with small energy due to production of high pitched sound travels longer distances.This sound move at a higher velocity and ata faster rate.
For current or former high-achieving, overachiever, perfectionist, and hard-working students: What are three things you wish you could tell your younger, high-achieving self or other school kids who also have the same work ethic as you (basically other young perfectionists)? Multiple people can answer, and I will be marking brainliest on whoever has the best answer.
Answers
Answer:
i dont know
Explanation:
I'm sorry i needed points for my own question! I only had 8:( sorry
7: How many times can a volcano erupt?
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Answer:
Some small volcanoes only erupt once in their lives,
while other volcanoes erupt multiple times. Kilaeua volcano in Hawaii, which has been erupting continuously since 1983, is the world's most active volcano. While some volcanoes erupt at regular intervals, there are always exceptions to the rule
Answer:
small volcano's only 1 time while big volcano's mutiple times
Explanation:
Fill each box with the chemical formula of the compound.
Answers
NaF, NaBr, Na2O, Na2S, Na3N, Na3P, NaI
KF, KBr, K2O, K2S, K3N, K3P, KI
BeF2, BeBr2, BeO, BeS, Be3N2, Be3P3, BeI2
MgF2, MgBr2, MgO, MgS, Mg3N2, Mg3P2, MgI2
CaF2, CaBr2, CaO, CaS, Ca3N2, Ca3P2, CaI2
Hope this helps! Make sure that the numbers are written small at the bottom of the letter cause it wasnt possible to do that here.
these days cloths made out of a mixture of synthetic fiber and natural fibers are more popular than those made purly out of synthetic fiber. Discuss the reason for this
Answers
Answer: Clothes purely made of synthetic fibers are not comfortable in a hot and humid environment as they don't have the property to absorb water or sweat quickly so their water-resistant property makes them unsuitable for hot humid environment .
Explanation:
Mixing of synthetic fiber and natural fibers enhances the properties such as strength, elasticity, and ease of ironing and washing. Generally in hot environments it is preferred to wear a mixture of synthetic and natural fiber than wearing only clothes made from synthetic fiber .
Moreover, mixing synthetic fibres with natural fibres enhances their properties, such as strength, elasticity and ease of washing and ironing. Hence, these days clothes made out of a mixture of synthetic fibres and natural fibres are more popular than those made purely out of synthetic fibres.
A balance and a graduated cylinder are used to determine the density of a mineral sample. The sample has a mass of 16 g and a volume of 2 cm3. What is the density of the mineral sample?
Answers
Answer:
8g/cm³
Explanation:
density is mass per unit volume , it is measured in grams per unit volume
Question 3 (please help)
When a population grows past the ecosystems carrying capacity, what happens to the population?
A.Continues to grow
B. The population starts to die off
C.The population grows then finds a new carrying capacity
Answers
Answer:
the Answer is B
Explanation:
If resources are being used faster than they are being replenished, then the species has exceeded its carrying capacity. If this occurs, the population will then decrease in size. Every stable population has one or more factors that limit its growth. A limiting factor determines the carrying capacity for a species.
hope this helps have a good day :)
Julio’s family recently installed solar panels on their house in Phoenix, Arizona. They wanted to decrease their electrical bills, although the panels cost them some money upfront. The remaining electrical energy in Julio’s home comes from a hydroelectric power plant. What kind of resource is solar power?
Answers
Solar power : photovoltaic effect : converts sunlight into electricity : when silicon absorbs light & release electrons : electrons used to make electricity
Answer:
Solar power is a type of energy resource.
It comes from the sun and can be used to power homes and buildings.
Solar power is renewable, meaning it won't run out.
To calculate the energy generated by solar panels, you can use the formula: Energy = Power x Time.
The formula used to convert sunlight into electricity is called the photovoltaic effect.
When using solar power, it's important to watch for the amount of sunlight available, as this affects the amount of energy that can be generated.
An example of using solar power is using solar panels on a house to generate electricity.
A real-world example of solar power is the large-scale solar farms used to generate electricity for cities and towns.
Answer: Solar power is a renewable energy resource.
What to watch: The amount of sunlight available
Analogy: Solar power is like a free and endless supply of batteries that charge themselves using sunlight.
The photovoltaic effect is a way to convert sunlight into electricity.
This effect occurs when certain materials, such as silicon, absorb light and release electrons.
The released electrons can then be used to generate an electric current.
The formula used to calculate the power generated by a solar panel using the photovoltaic effect is Power = Voltage x Current.
This formula is known as the power equation.
When using the photovoltaic effect to generate electricity, it's important to watch for the amount of sunlight available, as this affects the amount of power that can be generated.
An example of using the photovoltaic effect is using solar panels on a house to generate electricity.
A real-world example of the photovoltaic effect is the use of large-scale solar farms to generate electricity for cities and towns.
Answer: The photovoltaic effect is a way to convert sunlight into electricity.
ChatGPT
Answer: it’s a renewable energy
Explanation: it doesn’t have a limit to how much energy can be consumed
What is the displacement if the bike (A) traveled home (B) and then to the tree(C)?
Answers
whos good at the periodic table cus im not help
Answers
Hello i need help with #2
Answers
I'm sure it's the top answer. If you're not sure it's as easy as googling it up.
Explanation:
What is relative mass of an atom
Answers
Answer:
Explanation:
The relative atomic mass of an element is a weighted average of the masses of the atoms of the isotopes - because if there is much more of one isotope then that will influence the average mass much more than the less abundant isotope will.
Why were the iron fillings in a water a suspension?
Answers
What could be the cause for the large temperature difference in Atlanta and St. Louis? A. A cold front moving southeast
B. A warm front moving southeast
C. High pressure in Atlanta
D. Low pressure in Atlanta
Answers
bit.my.HJA/.RJA.com
need help ASAP
Write a sentence that begins an adjective phrase. Be sure to punctuate it properly!
Answers
What are all the breeds of dogs and how many breeds of dogs are there?
Answers
Answer:
In the United States alone, the AKC's dog breed list currently includes 190 dog breeds. Worldwide, the FCI lists 360 officially recognized breeds.
Explanation:
There are approximately 400 separate breeds of purebred dogs worldwide. A purebred dog is considered to be one whose genealogy is traceable for three generations within the same breed
There are currently more than 340 different breeds of dogs recognised throughout the world.
Which two factors that influence weather are caused by the uneven heating of
Earth's surface by sunlight?
A. The formation of ocean currents that carry cold or warm water
B. The curving of an ocean current's path as Earth rotates
C. The formation of convection currents in the atmosphere
D. The curving of an air current's path as Earth rotates
Answers
Explain 3 examples of kinetic and Potential energy
Answers
Answer:
1. Planets; movement of planets around the sun and other stars in the galaxy is kinetic energy
2. Rubber Bands; can be classified as both potential and kinetic energy, depending on the state of the band (when stretch=potential energy; when released=kinetic energy)
3. Rivers; strictly kinetic energy. the water is constantly moving creating kinetic energy.
Explanation:
100 POINTS!!! As liquid or gases heat up, they ____________. Then as they __________ they fall, thus driving the motion the of convection.
Rise, Cool
Create Heat, Burn
Bubble, Overflow
Fall, Heat
Answers
Answer:
Rise, cool
Explanation:
As liquid or gases heat up, they Rise. Then as they Cool they fall, thus driving the motion the of convection.
Please mark branliest if you are satisfied. Thanking in anticipation.