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The Earth is the only planet in our solar system known to support life.
Fact. (This is a verifiable statement based on current scientific knowledge. The key word is "known".)
Learning a second language is easier for children than it is for adults.
Fact. (While "easier" can be subjective, this is a widely supported finding in linguistics and neuroscience, related to brain plasticity. It's a provable trend.
By 2050, solar power will be the most efficient energy source available.
Opinion. (This is a prediction about the future. It cannot be verified as true or false right now.)
The average human heart beats approximately 100,000 times per day.
Fact. (This is a verifiable, measurable medical statistic.)
The high number of old books in the library proves that people don't read anymore.
Opinion. (This is an interpretation or conclusion. The first part is a fact, but the "proves..." part is someone's opinion on the reason.)
William Shakespeare wrote 37 plays and 154 sonnets.
Fact. (This is a verifiable number based on historical and literary records, though scholars sometimes debate one or two attributions.)
Shakespeare's Hamlet is a more complex story than Macbeth.
Opinion. ("More complex" is a subjective judgment that depends on what criteria you use.)
Some insects, such as the monarch butterfly, migrate thousands of miles.
Fact. (This is a scientifically observed and documented animal behavior.)
The legal voting age in the United States should be lowered to 16.
Opinion. (The word "should" signals a belief or a proposal, not a current fact.)
The 1969 moon landing was the most significant human achievement of the 20th century.
Opinion. (This is a superlative claim ("most significant"). Other people might argue for the invention of the internet or antibiotics.)
Many health experts agree that processed sugar is detrimental to human health.
Fact. (This statement is about an opinion, but it is a verifiable fact that many experts agree. You can prove this by citing medical studies and expert consensu
Based on its box office failure, that movie was clearly a terrible film.
Opinion. (It's a fact that it failed at the box office, but the conclusion that it was "terrible" is an opinion. Many critically acclaimed films have low box of
The Constitution of the United States has 27 amendments.
Fact. (This is a verifiable number you can count from the historical document.)
The first amendment of the Constitution is the most important one.
Opinion. (This is a judgment of value ("most important").)
According to the report, our school's test scores have improved by 10% in three years.
Fact. (The key phrase "According to the report" makes this a verifiable claim. You can check the report to see if it says that.)
The book's author won a prestigious award, which proves it is a well-written novel.
Opinion. (It is a fact that the author won an award, but the conclusion that this proves it is "well-written" is an opinion. A reader could still find it poorly
