In an engine, fuel and oxygen chemically react and release energy. What happens to the energy NOT used by the engine?
A.
It has been destroyed.
B.
It is lost in the form of heat and sound.
C.
It remains stored in the chemical bonds of the fuel.
D.
It is converted into methane.
what is the correct answer?
please double check
The correct answer is B. It is lost in the form of heat and sound.
To determine the correct answer, let's analyze the options:
A. It has been destroyed: Energy cannot be created or destroyed according to the law of conservation of energy. So, this option is incorrect.
B. It is lost in the form of heat and sound: This option is commonly true for many engines. Not all of the released energy can be effectively converted into useful work, so a significant portion of it is usually lost as heat and sound. Therefore, this option could be correct.
C. It remains stored in the chemical bonds of the fuel: After the chemical reaction between fuel and oxygen, the energy is released. However, this option doesn't address what happens to the energy that is not used by the engine. So, this option is likely incorrect.
D. It is converted into methane: This option implies that the unused energy is transformed into an entirely different substance, which is not typical of most engines. So, this option is likely incorrect.
Based on this analysis, option B, "It is lost in the form of heat and sound," is likely the correct answer.
The correct answer is B. It is lost in the form of heat and sound.
Below is an excerpt from an informational essay that a student wrote.
Based on a recent study, school lunches have been shown to be an important factor for students in schools. Students that eat a healthy lunch perform better on high stakes tests and are reportedly healthier and happier. Furthermore, good nutrition is important for children in the developmental process. So really, it's pretty obvious how important it is to make school lunches number one!
Which of the following is the best way to revise the underlined sentence for appropriate language while maintaining the same meaning?
A.
Really, it is pretty obvious how badly we need to do something with lunches.
B.
In conclusion, it is important that schools prioritize nutrition in order to maximize the benefits to children.
C.
We need to do something, because obviously we need better lunches badly.
D.
Students perform better at a statistically significant level when they are provided with something to eat.
The best way to revise the underlined sentence for appropriate language while maintaining the same meaning is option B: "In conclusion, it is important that schools prioritize nutrition in order to maximize the benefits to children."
This revised sentence maintains the focus on the importance of school lunches but presents it in a more formal and objective manner. It avoids the use of slang ("pretty obvious"), provides a more concise summary of the main idea, and maintains a professional tone appropriate for an informational essay.
Which sentence in the first paragraph should be removed because it does not relate to the main idea?
A.
sentence 2
B.
sentence 3
C.
sentence 4
D.
sentence 5
(1) The Statue of Liberty is a renowned symbol of American patriotism throughout the world (Panati, Charles p.291). (2) This statue stands 152 feet tall on top of an 89 foot granite pedestal in New York Harbor. (3) It stands on Liberty Island, formerly called Bedloe's Island. (4) When people are in the harbor, they are near this marvelous symbol of liberty. (5) I saw this statue and will never forget it. (6) What they may not know is that creating the statue took many years and effort to complete.
what is the correct answer?
read the paragraph then answer the question
Based on the given paragraph, the sentence that should be removed because it does not relate to the main idea is sentence 5: "I saw this statue and will never forget it." This sentence is a personal anecdote from the author and does not contribute to the main idea of providing information about the Statue of Liberty, its location, and its significance.
Read the following sentence from the passage "A Gift of Admiration."
What they may not know is that creating the statue took many years and effort to complete.
How should the sentence be revised to create a more formal tone?
A.
To many the creation of the statue was not known because it took many years and much effort to complete.
B.
What many do not know, is that creating the statue took many years and much effort to complete.
C.
Not known by them, is that the creation of the statue took lots of years and much effort to complete.
what is the correct answer?
please double check
The correct answer is B.
"What many do not know is that creating the statue took many years and much effort to complete."
This revision presents the information in a more formal tone by using proper grammar and removing unnecessary phrases ("To many," "Not known by them") that can make the sentence sound informal or awkward.
A student is writing a report and wants to edit it to make better transitions among the paragraphs. Read the students report and answer the question that follows.
President Abraham Lincoln delivered the Gettysburg Address in 1863 at the dedication of the Soldiers' National Cemetery in Pennsylvania. The first speaker at the dedication, Edward Everett, orated for more than two hours. President Lincoln spoke after him, and his speech lasted little more than two minutes. Afterward, Everett told Lincoln that he wished he could express in two hours what Lincoln had said in two minutes.
Lincoln had delivered one of the most memorable speeches in history. This was fitting, as over 50,000 soldiers had died at the Battle of Gettysburg, a turning point in the Civil War. Lincoln's speech focused on a "new birth of freedom" in the United States, as he invoked the Declaration of Independence and its principles of liberty and equality. He stated clearly the need for the nation to be both united and free.
The oldest copies of the speech are different from one another. The Library of Congress has two copies, and the others were recorded by Lincoln well after the speech. One copy was made for Everett, but "Bancroft" and "Bliss" versions also exist. The "Bliss" version is carved into a wall of the Lincoln Memorial in our nation's capital.
Choose the sentence that provides the BEST transition between paragraphs 2 and 3.
A.
It is not exactly certain which words Lincoln spoke that day.
B.
The spirit of Lincoln's speech is remembered well today.
C.
Lincoln was certain about his vision for the course of the nation.
D.
Lincoln's speech had surprised the crowd.
analyze and then give the correct answer