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  • ____% of the Earth’s water is salt water
    A. 3% B. 90% C. 97%
  • About 0.2% of the world’s population are twins born each year. A.20% B.2% C.0.2%
    C.0.2% ==> 1/500
  • ____% of people live in countries with no access to clean drinking water. A.10% B.25% C.60%
    B.25% ==> 1/4
  • 96% of animals on Earth are invertebrates (they have no backbone).
    24/25
  • The Amazon rainforest produces 20% of the world’s oxygen. Convert the percent to fraction.
    20% ==> 1/5
  • Your brain uses _____% of your body's energy, even at rest. Change percent to fraction. A.99% B. 50 % C. 20%
    C. 20% ==> 1/5
  • 80% of what we learn is through our eyes (vision). Yes or No.
    4/5
  • --- of the world’s ice is in Antarctica. A.90% B. 50% C.10%
    9/10
  • Only ___% of Earth’s water is fresh water. A. 3% B. 10% C. 30%
    A. 3% ==> 3/100
  • 60% of the world’s population lives in Asia. A. 10% B. 60% C. 80%
    B. 60% ==> 3/5
  • ____% of the global population speaks English. A. 80% B. 20% C. 50%
    B. 20% ==> 1/5
  • Less than ___% of people are ambidextrous (use both hands equally). A.0.1% B. 1% C. 5%
    B.1% ==> 1/100
  • 70% of the Earth's surface is covered by water. Change the percent to fraction.
    7/10
  • ____ of people drink caffeine (like in coffee or soda). A. 15% B. 55% C. 85%
    C.85% ==> 17/20
  • Our eyes can see only about 0.003% of the light in the universe. Change it to fraction.
    3/100000
  • About ----% of what people eat globally is made from rice, wheat, or corn. A. 30% B. 60% C. 90%
    B. 60% ==> 3/5
  • The Sun makes up 99.86% of our solar system’s mass. Change percent to fraction.
    9986/10000 ==> 4993/5000
  • ____% of people have never used the internet. A. 1% B. 5% C.11%
    B.5% ==> 1/20
  • Humans share ___% of their DNA with chimpanzees. A.50% B.90% C. 99%
    C.99% ==>99/100
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