Student A:Sea salt is salt that is produced by the evaporation of seawater. It is used as a seasoning in foods, cooking, and cosmetics. It is also called bay salt, solar salt, or salt. Like mined rock salt, production of sea salt has been dated to prehistoric times. There is no scientific evidence that consuming sea salt instead of more refined sodium chloride salts has any health benefit.

Answer this question: manufacture of salt from seawater is which change?
Student B:OK... To answer the above question, the relevant sentence is: Sea salt is salt that is produced by the evaporation of seawater.
evaporation.

Problem:Passage: Profitability index (PI), also known as profit investment ratio (PIR) and value investment ratio (VIR), is the ratio of payoff to investment of a proposed project. It is a useful tool for ranking projects because it allows you to quantify the amount of value created per unit of investment.

Question: Based on this passage, the profitability index of an investment project is the ratio of the?
Solution:OK... To answer the above question, the relevant sentence is: Profitability index (PI), also known as profit investment ratio (PIR) and value investment ratio (VIR), is the ratio of payoff to investment of a proposed project.
payoff to investment.

Student A:Theodore Raymond "T.R." Knight (born March 26, 1973) is an American actor. He is best known for his role as Dr. George O'Malley on the ABC medical drama Grey's Anatomy. Having acted on stage since the age of five, Knight had starred on Broadway, off-Broadway, and theatre productions in his home state of Minnesota. He received a Drama Desk Award nomination for his performance in MCC Theater's Scattergood in 2003.

Answer this question based on the passage: actor who plays george in grey's anatomy?
Student B:OK... This is the relevant information: He is best known for his role as Dr. George O'Malley on the ABC medical drama Grey's Anatomy.
Theodore Raymond '' T.R. '' Knight.

Problem:Passage: The flag of Argentina is a triband, composed of three equally wide horizontal bands coloured baby blue and white. There are multiple interpretations on the reasons for those colors. The flag was created by Manuel Belgrano, in line with the creation of the Cockade of Argentina, and was first raised at the city of Rosario on February 27, 1812, during the Argentine War of Independence. The National Flag Memorial was later built on the site. The First Triumvirate did not approve the use of the flag, but the Asamblea del Ano XIII allowed the use of the flag as a war flag. It was the Congress of Tucuman which finally designated it as the national flag, in 1816. A yellow Sun of May was added to the center in 1818.

Question: Based on this passage, which flag has a sun in the middle?
Solution:OK... The relevant information is: A yellow Sun of May was added to the center in 1818.
flag of Argentina.

Student A:The corresponding vein that carries deoxygenated blood from the upper half of the body is the superior vena cava.

What is the function of the super vena cava?
Student B:OK... To answer this question, we should know that: The corresponding vein that carries deoxygenated blood from the upper half of the body is the superior vena cava.
carries deoxygenated blood from the upper half of the body.

Student A:The thoracic nerves are the twelve spinal nerves emerging from the thoracic vertebrae. Each thoracic nerve T1-T12 originates from below each corresponding thoracic vertebra. Branches also exit the spine and go directly to the paravertebral ganglia of the autonomic nervous system where they are involved in the functions of organs and glands in the head, neck, thorax and abdomen.

Answer this question based on the passage: what are the nerves called that emerge from the thoracic region of the spinal cord?
Student B:
OK... The relevant information is: Each thoracic nerve T1-T12 originates from below each corresponding thoracic vertebra.
T1 - T12.