Mastering Key Ideas in Texts

Read the following passage and answer the question:
*"The Amazon rainforest, often called the 'lungs of the Earth,' produces approximately 20% of the world's oxygen. It spans over 5.5 million square kilometers across nine countries in South America."*
What percentage of the world's oxygen does the Amazon rainforest produce?

• 10%

• 15%

• 20%

• 25%

Read the following passage and answer the question:
*"Marie Curie was a pioneering scientist who conducted groundbreaking research on radioactivity. She was the first woman to win a Nobel Prize and remains the only person to have won Nobel Prizes in two different sciences — Physics in 1903 and Chemistry in 1911."*
In which two fields did Marie Curie win Nobel Prizes?

• Chemistry and Biology

• Physics and Chemistry

• Physics and Medicine

• Biology and Medicine

Read the following passage and answer the question:
*"The Great Wall of China was built over many centuries, beginning as early as the 7th century BC. It stretches approximately 13,170 miles and was primarily constructed to protect Chinese states from invasions by nomadic groups from the north."*
What was the primary purpose of building the Great Wall of China?

• To serve as a trade route between cities

• To mark the boundaries of the Chinese empire

• To protect Chinese states from northern invasions

• To provide employment for Chinese citizens

Read the following passage and answer the question:
*"Photosynthesis is the process by which green plants convert sunlight into food. Using chlorophyll in their leaves, plants absorb sunlight and combine it with carbon dioxide from the air and water from the soil to produce glucose and oxygen."*
Which of the following best identifies the main idea of this passage?

• Plants need sunlight to survive in all environments

• Photosynthesis is the process plants use to convert sunlight into food using chlorophyll, carbon dioxide, and water

• Chlorophyll is the most important component in a plant's leaf

• Oxygen is the primary product of photosynthesis

Tags

CCSS.RI.11-12.2

CCSS.RI. 9-10.2

CCSS.RI.8.2

CCSS.RL.11-12.2

CCSS.RL.9-10.2

Read the following passage and answer the question: "The Industrial Revolution, which began in Britain in the late 18th century, transformed societies from agrarian economies to industrial ones. Factories replaced farms as the primary source of employment, and cities grew rapidly as workers migrated from rural areas. New technologies such as the steam engine revolutionized transportation and manufacturing." Which of the following best summarizes the key details of this passage?

• The Industrial Revolution caused widespread poverty in Britain

• The Industrial Revolution shifted economies from farming to industry, urbanized populations, and introduced new technologies

• The steam engine was the sole cause of the Industrial Revolution

• Britain's population declined significantly during the Industrial Revolution

Tags

CCSS.RI.11-12.2

CCSS.RI. 9-10.2

CCSS.RI.8.2

CCSS.RL.11-12.2

CCSS.RL.9-10.2

Read the following passage and answer the question:
*"Climate change poses one of the greatest threats to biodiversity. Rising temperatures are altering habitats, forcing species to migrate or adapt. Coral reefs, which support approximately 25% of all marine species, are bleaching due to warmer ocean temperatures. Meanwhile, polar bears face extinction as Arctic ice melts at unprecedented rates."*
How does the author organize the information in this passage?

• By presenting a problem and then offering solutions

• By comparing two different environmental issues

• By introducing a broad threat and then providing specific examples

• By listing events in chronological order

Tags

CCSS.RI.11-12.5

CCSS.RI.6.5

CCSS.RI.7.5

CCSS.RI.8.5

CCSS.RI.9-10.5

Read the following passage and answer the question:
*"After years of drought, the once-thriving farmland had become a barren wasteland. The farmer stood at the edge of his field, watching the cracked earth stretch endlessly before him. 'The land has forgotten how to drink,' he whispered to no one in particular."*
What does the figurative expression "The land has forgotten how to drink" most likely mean?

• The land has become too polluted to absorb water

• The soil has become so dry and hardened that it can no longer absorb water effectively

• The farmer has forgotten to irrigate his crops

• The land is too old to support farming anymore

Read the following passage and answer the question:
*"Social media platforms have fundamentally changed the way people communicate. While they allow individuals to connect across vast distances, critics argue that they have also contributed to increased feelings of loneliness and anxiety, particularly among teenagers. Studies show that teens who spend more than three hours daily on social media are significantly more likely to report mental health issues."*
Based on the passage, what inference can be made about the relationship between social media use and mental health?

• Social media has no measurable impact on mental health

• All teenagers who use social media will develop mental health issues

• Excessive social media use may negatively affect the mental health of teenagers

• Social media platforms are designed to cause anxiety in users

Tags

CCSS.RI.11-12.2

CCSS.RI.9-10.1

CCSS.RL.11-12.1

CCSS.RL.9-10.1

CCSS.RL.8.1

Read the following passage and answer the question:
*"The library was a cathedral of knowledge, its towering shelves reaching toward the ceiling like ancient pillars. Students moved through the aisles in reverent silence, their fingers trailing along the spines of books as though touching sacred relics."*
What is the effect of comparing the library to a cathedral in this passage?

• It suggests that the library is an old and deteriorating building

• It implies that the library is a place of great reverence, importance, and spiritual significance

• It indicates that the library is only open to religious scholars

• It shows that the library is too formal and unwelcoming for students

Read the following passage and answer the question: *"In 1962, Rachel Carson published 'Silent Spring,' a book that documented the harmful effects of pesticides on the environment. Carson argued that chemicals like DDT were not only killing insects but also contaminating the food chain, harming birds, fish, and ultimately humans. The book sparked widespread public debate and is widely credited with launching the modern environmental movement."* What is the author's primary purpose in writing this passage?

• To argue that pesticides should be banned immediately

• To inform readers about the significance of Rachel Carson's work and its impact on environmentalism

• To persuade readers to stop using chemical products in their homes

• To compare Rachel Carson's findings with modern environmental research

Tags

CCSS.RI. 9-10.6

CCSS.RI.11-12.6

CCSS.RL.11-12.6

CCSS.RL.9-10.6

CCSS.RL.8.6