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10 questions
How many cupcakes are in a baker’s dozen?
15
13
12
10
Which of the following structures is the site of gas exchange in the lungs?
alveoli
bronchi
bronchioles
trachea
How many colors are needed on a map to make sure that no border will share a color?
four
six
ten
twelve
What is the chemical formula for sodium chloride?
NaCl
NCl
NaCr
SC
What is the middle date of 2021?
June 2
June 30
July 2
July 30
Where is the energy for photosynthesis generally obtained?
carbon dioxide
chlorophyll
chloroplast
sunlight
Who was the first to use x as a variable?
Rene Descartes
Galileo Galilei
Albert Einstein
Isaac Newton
The heart of this organism is located on its head.
Ant
Butterfly
Shrimp
Spider
What is the value where Celsius is equal to Fahrenheit?
-30
30
-40
40
Which of these stars is the coolest?
blue
orange
red
yellow
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