1. · Explain the origin of coal and name its various varieties.
2. Define the following:
(i) Coal gas
(ii) Coal tar
(iii) Coke

Answers

Answer 1

Answer:

Coal gas is a flammable gaseous fuel made from coal and supplied to the user via a piped distribution system.It is produced when coal is heated strongly in the absence of air. ... Facilities where the gas was produced were often known as a manufactured gas plant (MGP) or a gasworks.

Coal tar is a thick dark liquid which is a by-product of the production of coke and coal gas from coal. It has both medical and industrial uses. Medicinally it is a topical medication applied to skin to treat psoriasis and seborrheic dermatitis (dandruff). It may be used in combination with ultraviolet light therapy.

: a bituminous coal suitable for making into coke.


Related Questions

Oxygen on Earth: What is the order for cellular respiration and photosynthesis?

Answers

Answer: While water is broken down to form oxygen during photosynthesis, in cellular respiration oxygen is combined with hydrogen to form water. While photosynthesis requires carbon dioxide and releases oxygen, cellular respiration requires oxygen and releases carbon dioxide.

Explanation:

How are they different?
Giraffe

Answers

Answer:

Seven other species are extinct, prehistoric species known from fossils. The giraffe's chief distinguishing characteristics are its extremely long neck and legs, its horn-like ossicones, and its distinctive coat patterns. It is classified under the family Giraffidae, along with its closest extant relative, the okapi.

What role does the cytoplasm play in a cell?

Answers

The cytoplasm is responsible for holding the components of the cell and to protect them of getting damaged. It stores requieres molecules & gives the cells its shape

The parts of the cell are held in place by the cytoplasm, which also serves to keep them safe from harm. It preserves needed chemicals and lends the cells their form.

What is the role of cytoplasm in cell?

The gel-like substance that fills a cell is called cytoplasm. It serves as a catalyst for chemical reactions.

It offers a foundation for other organelles to function within the cell. A cell's cytoplasm is where all the processes for cell division, growth, and replication take place.

The cytoplasm's structure has a gel-like consistency. Organelles, buildings, and cytoplasmic inclusions are all present.

Its duties include transport, preserving the form and structure of the cell, safeguarding, storing macromolecules, and serving as the host for metabolic processes.

Therefore, the cytoplasm play important role in a cell.

Learn more about cytoplasm here:

https://brainly.com/question/15176318

#SPJ2

Variation in DNA is the direct result of which of the following? *

Asexual Reproduction
Crossing Over
Interphase
Somatic Cells

Answers

Answer:

crossing over

Explanation:

crossing over allows the cell to have infinite variations

Should be crossing over:)

PLS HELP FAST ILL GIVE BRAINLYEST (if correct)

Answers

Answer:

skin

hypothermia

constrict

generate

hyperthermia

dilate

disperse

Explanation:

just wanted to know if this is correct:)​

Answers

I think is correct

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Plz brainliest❗️

How does curd being set? Is this change reversible?​

Answers

Answer:

A small quantity of curd is added to warm milk. The milk is stirred and is set aside undisturbed for a few hours at a warm place. ... Curd formed from milk cannot be changed into milk again. So, this an irreversible (cannot be reversed) change.

Explanation:

5. Which of the following organisms is a decomposed

Answers

Answer:

i cant answer u cuz there are no following

Explanation:

Most of the organisms that are decomposers are microscopic including Protozoa and Bacteria. Let me know the above answers choices and I will help you out!

Behavioral adaptations allow some organisms to survive in hot, arid environments. While some large organisms and birds may migrate over long distances, smaller organisms may not be able to travel very far.

Which of the following is a behavioral adaptation that allows many small organisms to survive extreme hot and arid conditions?

A. Having a diurnal circadian rhythm

B. Seeking shade in burrows and caves during the middle of the day

C. Huddling in groups to reduce airflow

D. Having fur on the bottom of their paws as insulation from hot sand

Answers

seeking shade in burrows and caves during the middle of the day!

think about animals in the desert. they come out when it’s cooler at night :)

Circumstances to which the organism acclimates for survival is called behavioural adaptation which results in evolution. They can be adapted through instincts or learnings.

Many small organisms survive extreme hot and arid conditions by option B. seeking shade in burrows and caves during the middle of the day.

Behavioural adaptation can be explained as:

Large animals migrate during the summer to cooler and better environmental places but small animals cannot travel much and seek behavioural adaptation.

In severe heat and parched conditions, small animals hide in pits and burrows to avoid hotness and seek cool shelter in burrows during hot daytime. The small animals comprehend and adjust to this survival by behavioural learning.

Therefore, small animals seek shade in cool burrows.

Learn more about behavioural adaptation here:

https://brainly.com/question/7983018

A Canada goose is migrating from Canada to Georgia for the winter. The goose has traveled at an average speed of 30 mph and has been in flight for 7 hours. About how far has the Canada goose flown so far?

Answers

Answer:210 miles

Explanation:

30 times 7 = 210

Please help me ASAP this is very important please help!!!!!

Answers

Answer:

The vapor particles have less energy.

Which of the following is NOT a major difference between the inner and outer planets?

Inner planets are close together, but outer planets are spread far apart.

Inner planets are smaller and outer planets are bigger.

Inner planets are made out of rock, but outer planets are made out of gas.

Inner planets have moons, but the outer planets do not have moons.

Answers

Answer:

Inner planets have moons, but outer planets do not have moons.

Explanation:

Outer planets are considered more jovian planets meaning that one of their characteristics is that they actually have more moons than the inner planets.

what adaptation is apparent in the bodies of the three tortoise species shown in figure 16-2

Answers

Answer: What adaptation is apparent in the bodies of the three tortoise species shown in Figure 16-2? The tortoises have necks of different lengths and shells that differ in overall shape and in the size of the opening for the neck.

Neck length and shell shape

i hope ur day is going well and i hope your week will be great!

~hailey lee~

HELP

weathering occurs when rocks are exposed to water, air, plants

true or false?

Answers

Answer:

This can be true

Explanation:

Answer:

true!

Explanation:

if I slept next to my Alexa all night, will it damage my brain a lot after doing this for a month?

Answers

I mean normally electronic devices can interfere with someone’s sleep quantity and quality

describe the relationship between biodiversity and watershed conservation​

Answers

Answer:

The plants, animals, and habitats — or biodiversity — of the Rondout watershed are a significant part of the region's character, natural infrastructure, and economy, and contribute directly to the quality and quantity of drinking water available to residents living in the region.

Explanation:

So add up all the points that you scored the water quality at. Be sure to add 4 pts for change of temp (It's not on the video). Use the chart on the back of the score sheet to see how the total score ranks for quality. What was your score and was the water....Excellent, Good, Fair, or Poor?

Answers

Answer:

Explanation:

Water temperature plays an important role in almost all USGS water science. ... and collecting water samples to describe the quality of those waters for over a ... But, if you ask a fish if the temperature of the water it is living in is important, ... In warm climates the surface may never get so cold as to cause the lake "to turn." But ...

2. How does Carbon get into animals (like humans and dogs and such)?
A They gain carbon through photosynthesis
B They gain carbon by eating it.
C They gain carbon by breathing it in.
D Trick Question! There is no Carbon in Animals!

Answers

Answer: D, Trick Question! There is no Carbon in Animals!

Explanation:

We don't breathe in carbon we breathe in oxygen and breathe out carbon.

Photosynthesis only happens in plants.

Carbon dioxide is a gas and you can't eat it.

Answer:  The correct answer is B They gain carbon by eating it.

Explanation:  When animals eat food, they are ingesting carbon in the form of carbohydrates and proteins. In addition, plants produce carbon during photosynthesis for plant growth. When animals eat the plants, they ingest carbon from those plants as well.

1) A brain cell would be one
a) body cell
b) sex cell

2) An egg cell would be one
a) body cell
b) sex cell

3) A muscle cell would be one
a) body cell
b) sex cell

4) A skin cell would be one
a) body cell
b) sex cell



Help plz

Answers

Answer:

1) A brain cell would be one

a) body cell

2) An egg cell would be one

b) sex cell

3) A muscle cell would be one

a) body cell

4) A skin cell would be one

a) body cell

I hope this help :)

Answer:

1) a

2) b

3) a

4) a

Explanation:

Floods are disturbances which cause high amounts of water which generally have strong pulls. When a forest floods an ecosystem and kills several local organisms it will most likely result in-

increased biodiversity and increased sustainability for the forest.
Decreased biodiversity and decreased sustainability for the forest.
increased biodiversity and decreased sustainability for the forest.
decreased biodiversity and increased sustainability for the forest.

Answers

Answer:

decreased biodiversity and increased sustainability for the forest.

after fertilization a single cell divides successfully to form a multicellular structure what happens next in order for this structure to develop tissues and organs to meet the needs of the organism

Answers

Answer:

After fertilization, a single cell divides successfully to form a multicellular structure. What happens next in order for this structure to develop tissues and organs to meet the needs of the organism? The cells undergo differentiation into particular body parts.

A multicellular organism develops from a single cell (the zygote) into a collection of many different cell types, organized into tissues and organs. Development involves cell division, body axis formation, tissue and organ development, and cell differentiation (gaining a final cell type identity).

Explanation:

hope this helps...

have a good day

ANSWER QUICK BEING TIMED If five of your skin cells will divide, how many daughter cells will they produce? Why?

Answers

Answer:

it is said that if I e of our skin cells divide then the form 2 daughter cells then I guess in this case 5× 2 = 10 daughter cells

I hope this is what you are looking for

Using fossil fuels is a safe for the environment.
False
True

Answers

False.
Coal, natural gas, and other fossil fuels are neither sub stainable nor safe. We shouldn’t use them.

What are sugar and water in a homogenous mixture of sugar and water?
O Sugar is solute and water is solution.
O Sugar is solution and water is solute.
O Sugar is solvent and water is solute.
O Sugar is solute and water is solvent.

Answers

Answer:

i believe it is the last choice

Sugar is solute and water is solvent.

Explanation:

Answer: sugar is solute and water is solvent

Explanation:

Worth 30 points please help

Answers

The answer is the third sentence because Some protists are photoautotrophs, manufacturing their own energy by photosynthesis (using sunlight).

¿Cómo podemos autorregular la temperatura en las plantas, sin importar que el ambiente esté frío o caluroso?.

Answers

Answer:

Las plantas regulan la temperatura por sí mismas.

Explicación:

No podemos autorregular la temperatura en las plantas, pero las plantas regulan la temperatura por sí mismas. Cuando la temperatura del cuerpo de la planta aumenta, se pueden regular mediante la transpiración. La transpiración es la evaporación del agua desde el interior del cuerpo a través de los estomas, al igual que el sudor en los seres humanos. Con esta liberación de humedad, el calor también se elimina y enfría la temperatura corporal.

Please help me It's over due and I need help.

Answers

15x would be the frist answer

A hurricane is a type of storm called a tropical cyclone

Answers

The eye, which is a calm area.

Answer:

the eye

Explanation:

I think ahahaha I'm not a weather man but I'm 99% sure

PLEASE HELP RIGHT AWAY!!!!!!! DUE TODAY!!!!!!!!!!!!!!!
8 A DNA molecule is made up of long chains of nucleotides. A DNA nucleotide consists of a ____________, a ______________, and a nitrogenous base.

9 In DNA, the four bases are _____________, _____________, ______________, and _____________. These bases are called complementary bases as Adenine (A) bonds only with ___________( ) and Guanine (G) bonds only with __________( ).

Answers

Answer:

1.  sugar molecule

2. phosphate group

3. adenine

4. cytosine

5. guanine

6. thymine

7. thymine

8. cytosine

Drag and drop the steps of digestion to order them from first to last step.
Saliva rushes into the mouth and mixes with the broken-down food.
The food travels down the esophagus.
The muscles of the stomach churn the food and continue to break it down.
The teeth in the mouth bite off a piece of food. The teeth continue to break the food into smaller pieces.
The broken-down food, called chyme, enters the small intestine.
The remaining food passes into the large intestine. Water is absorbed from the large intestine and the rest of
the material is stored as solid waste until it is excreted from the body.

Answers

Answer:

The teeth in the mouth bite off a piece of food.

The teeth continue to break the food into smaller pieces.

Saliva rushes into the mouth and mixes with the broken-down food.

The food travels down the esophagus.

The muscles of the stomach churn the food and continue to break it down.

The broken-down food, called chyme, enters the small intestine.

The remaining food passes into the large intestine. Water is absorbed from the large intestine and the rest of

the material is stored as solid waste until it is excreted from the body.

Explanation:

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