What is a conclusion based on fact?

It is a scientific fact that a person eats over an inch of dirt at every meal how is that possible? What is the relationship between materials and procedure in the scientific method? Oxygen makes up about what percentage of earth's air today? What experiment is one in which the condition suspected to cause the effect is compared to the same situation without the suspected condition? What is the difference between a magnifiying glass and a microscope? Are there different types of teapots? What does a person who studies a secondary area in addition to his or her major has? Do your feet expand throughout the day? What is 7 lbs in kilos? How many quarts is 1.25 liter? How did Ruth Ella Moore die? What is integrated science in spanish? How long can a recessive gene stay hidden in a person? How meters in a decametre? Why are symbols important in our lives? Does heat make you congested? What is The scientific method uses observation and which other process to answer questions? How many milligram are there in a gram? Can a humidifier clear a room of germs? How have workplaces changed over time?