Which stage of sleep is associated with most dreaming?

What are the two main types of sleep mentioned in the passage?

Which of the following is NOT mentioned as a conservation effort to protect coral reefs?

What is coral bleaching caused by?

What is one economic benefit of coral reefs mentioned in the passage?

How do coral reefs protect coastlines?

What percentage of marine species do coral reefs support?

What event highlighted the importance of vaccines according to the passage?

What does the term "vaccine hesitancy" refer to in the context of the passage?

Who discovered that exposure to cowpox could protect against smallpox?

What is the purpose of the Convention on Biological Diversity?

What is a major threat to biodiversity as mentioned in the passage?

What role do bees play in biodiversity according to the passage?

Which of the following is an example of an ecosystem service provided by biodiversity?

What does biodiversity encompass?

What does the word "profoundly" mean in the context of the first sentence?

What significant scientific theory did Nicolaus Copernicus propose?

Who is often described as the quintessential "Renaissance Man"?

What was the primary focus of humanism during the Renaissance?

What does the word "ubiquitous" mean as used in the first sentence?

Which term is an antonym for "democratized" in the context of making information accessible?

What was one major impact of the internet on communication?

What is a significant challenge introduced by the internet according to the passage?

What future technologies promise to bring further changes to the internet?

What was the original purpose of the internet's development?

What evidence suggests that Mars might have had conditions suitable for life?

What is the primary function of the International Space Station (ISS)?

Which word is an antonym for "cooperation" as used in the third paragraph?

What word is a synonym for "captivated" as used in the first paragraph?

What event marked the beginning of the space age?

Find an antonym for "accessible" as used in the passage.

What does "intermittency" refer to in the context of renewable energy?

Which form of renewable energy is still in the experimental stages?

What is one of the main benefits of solar energy mentioned in the passage?

Which of the following is a synonym for "replenished" as used in the passage?

What cultural and recreational values does biodiversity contribute to, according to the passage?

Which word from the passage is an antonym of "decline"?

Which term from the passage means 'variety of life on Earth'?

What potential benefit of biodiversity is highlighted in relation to medical discoveries?

Find a synonym for the word "mitigate" as used in the passage.

Which of the following human activities is NOT mentioned as a threat to biodiversity in the passage?

What does the word "resilient" most likely mean in the context of the passage?

What are some of the essential services provided by ecosystems mentioned in the passage?

Which region is highlighted in the passage as one of the most biodiverse on the planet?

What was a significant consequence of the mass migration to urban centers during the Industrial Revolution?

What term refers to the shift from agrarian economies to industrial economies during the Industrial Revolution?

What industry was one of the first to undergo mechanization during the Industrial Revolution?

Who is credited with developing the steam engine during the Industrial Revolution?

What are some challenges faced by electric cars despite their benefits?

When did Tesla introduce the Roadster, and what was significant about it?