Question 1 of 5
What is the main idea of this passage?
Potatoes, by some estimates, created modern civilization. Not only did they grow well in poor soil, but they contained most of the vitamins needed for survival. The average American eats 100 pounds of potatoes a year. French fries, potato chips, and instant mashed potatoes have made the potato the most recognized food. In the United States, potatoes are served in more ways than any other food.
A
Potatoes from Ireland started the Potato Revolution.
B
The average American eats 50 pounds of potatoes a year.
C
French fries are made from potatoes.
D
Potatoes are a key vegetable in America.
Why: The passage emphasizes the importance and versatility of potatoes in America, stating that they created modern civilization and are the most recognized food with extensive uses. Choice D captures this central theme. Choice A mentions Ireland, which is not discussed. Choice B incorrectly states 50 pounds instead of 100. Choice C is a known detail, not the main idea. Choice E discusses terms but the passage does not cover their history.
Question 2 of 5
Which of the following best represents the main idea of this passage?
Not all cultures have the same views of reality. One example is the way that different cultures regard and describe time. Native American tribes have concepts of time that differ from those of the predominant Anglo culture in North America. In American English, people often represent time in spatial terms: “That's a big chunk of time.” In another example, a Navajo man was hired by an Anglo businessman to do a job. However, on the day they had scheduled for the work, the Navajo man’s truck broke down, and he did not have a telephone or any way to contact the businessman. Initially, when the Navajo man showed up three days after their appointment, the Anglo man thought him irresponsible or confused.
A
Native Americans take longer than Anglos to get things done.
B
Different cultural values affect the way people perceive reality.
C
Native Americans treat time differently only in their languages.
D
Anglos are more impatient because they think time takes space.
Why: The passage directly states and illustrates through examples that different cultures perceive reality differently, particularly regarding time. Choice B matches this. Choice A misinterprets the Navajo example, which shows determination rather than delay. Choice C limits it to language only, but examples include actions. Choice D infers impatience not supported by the text.
Question 3 of 5
Which of the following statements could be a main idea for the passage?
A
The main idea is always stated directly.
B
Details support the main topic of a passage.
C
Passages have multiple main ideas.
D
Topic sentences are unimportant.
Why: Main ideas are supported by details in a passage, as per standard reading comprehension principles reflected in the source. This aligns with the focus on main idea and details lessons.
Question 4 of 5
Explain how you determined the main idea of this passage.
Why: This answer demonstrates a step-by-step process using definition (topic + point), explanation (checking details), and example (potato passage), meeting requirements for full marks.
Question 5 of 5
What is the difference between the topic of the passage and the main idea of the passage?
Why: Structure includes definition of each, brief explanation, example from sourced passages, and summary, ensuring top-scoring completeness.
