Where does most of the action take place in Black Beauty by Anna Sewell?

Anna Sewell's classic is set in 19th-century England and revolves around the life of a horse, Black Beauty.  The story is a first-person narrative of his life from the perspective of a horse including confusion about the ways of humans.  Most of the action in the story revolves around Black Beauty's various stables. 

His first and perhaps favorite housing is at Birtwick under Squire Gordon.  Throughout his life however, Black Beauty is sold a number of times and treated poorly by many of his owners.  Lady Anne of Earlshall Park is one aristocrat who poorly manages her stables leading to a high turnover and many injuries to the horses.  The cab companies in London also mistreat Black Beauty, save for Jerry Barker.  At the conclusion of the story, Black Beauty arrives under the care of James Howard, once a groom at the neighboring Birtwick estates, who almost killed Black Beauty when he was younger.  Black Beauty spends the remainder of his days happily ensconced at the Blomefields estate.

The earlier chapters detailing Black Beauty's exposure to the world hold most of the action.  This is when he was still stabled at the Birtwick estates.  Black Beauty witnesses the death of his brother Rob Roy, was nearly killed by the stable boy James, saved the life of a man foolishly trying to cross a dangerous bridge at night and almost succumbed to a fire.  Although the events take place away from the estate, Black Beauty always details his pleasure at arriving home.    

Why does the Radley place fascinate Scout, Jem and Dill?

The Radley place fascinates Dill and the Finch children because of the mystery that surrounds it.

After Dill Harris arrives in Maycomb,

[T]he Radley place fascinated Dill....In spite of our warnings and explanations it drew him as the moon draws water, but drew him no nearer than the light-pole on the corner....(Ch.1)

The house resembles an old haunted house: It is darkened to a dull grey; on the long unpainted exterior of the house, there are dilapidated shutters that "drooped over the eaves of the veranda." (Ch.1) Large oak trees darken much of the yard in which no grass grows. The broken remains of a picket fence "drunkenly guarded the front yard" (Ch.1) where only wild, tough grass and "rabbit-tobacco" grow wild. Rumors of the house's being occupied by "a malevolent phantom" abound.
Other rumors that circulate through Maycomb suggest that this phantom goes out on moonless nights and peers into people's windows. If this "haint" breathes on any azalea bushes at night, they are wilted the next day. When chickens or pets are found injured, it is because the phantom has been responsible, even though there is proof that a man called Crazy Addie was the culprit.

In addition, there is suspicion of what goes on in the Radley house because the occupants do not come outside; they do not go to church, and they never talk with any neighbors. Rumor also has it that Boo once stabbed his father in the leg with a scissors when he was thirty-three years old.
Thus, it is because of all this mystery that Dill wishes to make contact with Boo Radley, who seems to be insane. With such intense curiosity assisted by his creative imagination, Dill draws Jem and Scout into engaging in the adventure of learning more about the phantom who dwells inside the dark, sequestered house in their neighborhood.

What makes Alice different from others? Why do you like the character?

Alice is an individualist."Characters" in the Study Guide for Alice's Adventures in Wonderland describes her as:

...a curious, imaginative, strong-willed, and honest young English girl.

She is not content to be a typical docile, demure, quiet, obedient little Victorian girl. She gets bored with sitting around reading books--especially books with no pictures in them. She wants some adventure in her life. No doubt she gets some of her ideas about the possibilities of adventure from the books she reads--the ones she enjoys. She would like to explore the world. It is easy to relate to her because we are kept in her point of view throughout the entire book; and we can identify with her motivation, which is to get back home. Alice is courageous. In spite of being lost, and in spite of running into all sorts of strange creatures and situations--most notably the Queen of Hearts who wants to have Alice's head chopped off--the little girl remains unflappable. There is an element of danger throughout the story because the strange world has not been thoroughly explored, and may never be completely explored because it is infinite. Anything could happen.

Alice strongly resembles Dorothy in the Oz books, which is understandable because L. Frank Baum was directly inspired by the two books about Alice by Lewis Carroll. Dorothy has a similar strength of character. She could be described as:

...a curious, imaginative, strong-willed, and honest young Kansas girl.

Dorothy becomes the leader when she encounters the Scarecrow, the Tin Woodman, and the Cowardly Lion, because, albeit she is only around six years old, she is a real human being while they, along with all the other characters, are only illusions. The Wicked Witch of the West in The Wonderful Wizard of Oz is the counterpart of the Queen of Hearts in Alice's Adventures in Wonderland. Both provide the greatest danger to the intrepid heroines. Both these little girls are motivated to get back to their respective homes, but neither of them seems to be in any particular hurry to get there. Wonderland and Oz are far more interesting than the stodgy places Alice and Dorothy came from. 

What are two positive attributes of social media?

One good thing about social media is that it allows people to stay in touch with people who have moved away. In today's society, people move for careers, relationships, and other reasons. Social media allows one to stay in touch via chat and pictures with people they might not have seen in years. They may even arrange meetings. Social media sites such as Facebook, Twitter, and Vk are some of the most used sites in the word because people crave contact with each other even if they have not seen each other in years.  

Another good thing about social media is that it alerts people to causes. Gofundme is a crowdsourcing website that allows people to ask for donations for things like medical bills and college funding. Social media also calls attention to government corruption by the people experiencing it firsthand if they wish to report it on social media. Social media gives everyone a voice and makes it nearly impossible to silence anyone.  

What are the advantages and disadvantages of being tested for diseases?

There are a wide variety of diseases that you could be referring to in your question. I will try to address them in two groups: infectious diseases and genetic disorders. 

In the case of infectious diseases, the main advantage of getting tested would be the disease could be identified and proper treatment could begin. For example, if you have strep throat and it can be diagnosed quickly you can begin the correct antibiotics right away and avoid days of feeling miserable. In a more serious example, if someone gets tested for HIV and it is positive, they can begin treatment quickly which can improve their quality of life going forward. The only disadvantage for getting tested for an infectious disease is that there is sometimes a social stigma tied to certain diseases and treatment can be expensive. 

In the case of genetic disorders, there are more issues to weigh. In the case of genetic disorders that can be passed on to children, a couple may want to get tested to understand the chances of passing on a disorder. For example, if someone has a family history of cystic fibrosis, they may want to get tested to know if they are a carrier that could pass the gene on to children. Some people choose to have genetic testing for disorders that can show up later in life. This is the case for the gene for Huntington's Disease. Huntington's Disease is a devastating neurodegenerative disease that usually shows up later in life and there is no cure. By being tested at a younger age, someone can find out if they will eventually experience symptoms of Huntington's Disease. This is a huge decision that will likely affect how that person lives the rest of their life. 

With genetic disorders, some advantages to testing include possibly being able to prevent passing certain disorders to children and better treatment for different disorders since they will be correctly diagnosed. Some disadvantages include the fact that the results of the test can be life changing and can lead to very expensive treatments. In the case of testing to predict future disorders, such as Huntington's Disease, one needs to decide how the results will affect them and what they may do differently in life depending on the outcome. It is a very personal decision and can be different for each person. 

What made Geoffrey Chaucer significant?

Perhaps the main reason why people still speak of Geoffrey Chaucer today—more than 600 years since his death in 1400—is because he is the author of The Canterbury Tales. This collection of stories is regarded by many to be one of the English language's greatest poetic works.

What some do not know about The Canterbury Tales is the fact that Chaucer had originally intended to include 120 short stories in the anthology. Though the stories are told on more than 17,000 lines of printed text, there it only a total of 24 stories that are read and studied today. 

In death, his significance remains as he was the first to be buried in Poet's Corner in Westminster Abbey. Since his death and burial, other great writers—including Robert Browning and Charles Dickens—were laid to rest there as well.

Though The Canterbury Tales is by far his best-known work, A Treatise on the Astrolabe is another well-regarded piece of work, though it is much more technical in detail than many of his other writings. 

How do Mondrian and Cezanne use color in their paintings?

The use of color by modern painters is often concerned with two general aspects: the palette used by the artist, and the way that colors are mixed and applied on canvas or other painting surfaces to show form. The "palette" refers the range of colors normally used by an artist in a way that creates the particular look of that artist's work. Both Cezanne and Mondrian are known for bright colors; but Cezanne's color palette is one that is mixed in a very subtle way, with colors that look nearly as bright as pigments from the tube, but that are lightened or dulled slightly by the addition of grey or other pigments. Some art instructors will use Cezanne as an example to help student painters learn about mixing colors, because the colors are more complex than they look at first glance. Cezanne's colors are known to be vibrant and rich, and indeed the uniquely powerful use of color is considered a central aspect of Cezanne's style. Cezanne's opinion of the importance of color offers insight into his methods:

"Drawing and color are not separate at all; in so far as you paint, you draw. The more the color harmonizes, the more exact the drawing becomes. When the color achieves richness, the form attains its fullness also. The contrasts and relations of tones - there you have the secret of drawing and modeling".

In this quote we see that Cezanne's methods of painting and his creation of form are both intimately connected to his use of color. Since Cezanne's work is mostly figurative subjects or landscapes, his use of color needs to be fairly naturalistic (although his paintings are not particularly realistic, they are also not abstract or surreal).

In the case of Piet Mondrian, who is famous for his abstract works, the use of bright or pastel colors need not be naturalistic, and in fact the dramatic contrasting colors of his images are his calling card as a painter. Mondrian's most famous works use many primary shades of red, blue and yellow, but he also works in pastels and more subtle color combinations.