All categories

2 years ago

1. · Explain the origin of coal and name its various varieties.

Biology

1 answer:

scZoUnD [109]2 years ago

8 0

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.

You might be interested in

Which of these processes produces oxygen

muminat

the answer is photosynthesis bcuz plants have to go thru the photosynthesis process to give off oxygen. hope the helps Brianliest??

7 0

3 years ago

Read 2 more answers

Which of the following does not increase genetic variation in a population ?

ira [324]

The correct answer is Mitosis !! B !!

Mitosis did not do DNA varriations !!

7 0

3 years ago

The process of bones increasing in thickness is known as ________.

ololo11 [35]

Answer:

The cells lying in the deeper layer of periosteum are known as osteoblasts (bone forming cells). These cells divide continuously and form the osteocytes, thus increase the thickness of bone. ... The process of reshaping the bone is called remodeling and it is one of the major factors responsible for increasing size of marrow cavity.

5 0

3 years ago

Natural selection favors

Effectus [21]

Answer:

D, organisms that survive long enough to reproduce.

Explanation:

C and D are the best answers. Adaptations and skills other than speed and strength contribute to an organism's survival too, so that means it isn't C. Natural Selection is about how an organism must have useful traits to survive to reproductive stage and successfully reproduce, so it would definitely be D.

Please Mark Brainliest! I need nine to level up.

8 0

3 years ago

Read 2 more answers

A scientist discovers a new plant. After investigating its properties, the scientist concludes that the plant does

gayaneshka [121]

non-photosynthetic plants are not common in nature, they do not have a green color, to be able to answer the question we must know that .......

<h3>General characteristics of plants</h3>

Plants are classified as autotrophic organisms, since the large one is capable of photosynthesis. With the exception of plants, some achlor species being observed, therefore, not achlorizing plants.

<h3>Chloroplast</h3>

Chloroplast, a structure within the cells of plants and green algae that is the site of photosynthesis, the process by which light energy is converted to chemical energy, resulting in the production of oxygen and energy-rich organic compounds.

<h3>It happened in real life</h3>

The newly discovered plant — named Gastrodia kuroshimensis — occurs in the dark understory of forests, where little light penetrates. So instead of using sunlight or photosynthesis to generate nutrients, the plant parasitizes the fungi in the forest soil for its daily dose of nutrition.

With this information we can say that the correct alternative is B. where it states that there are no chloroplasts in the plant cells.

B. There are no chloroplasts in the plant's cells.

These plants that do not photosynthesize do not have the green pigment, what gives the plants their green color is the chlorophyll that is in the chloroplast.

Learn more about Chloroplast in brainly.com/question/11136550?referrer=searchResults

6 0

2 years ago

Read 2 more answers