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What is the most abundant element in the universe?

“Hydrogen is the most abundant element in the universe, making up about 75% of all normal matter by mass.”

Reference: NASA

What saturation of sulfur dioxide will cause people to cough

Sulfur dioxide is a colorless gas with a suffocating, choking odor. It is toxic to humans and concentrations as low as 8 ppm will produce coughing. Incredibly, in the Odyssey, Homer describes the burning of sulfur (formation of SO2) as a way that homes were 'fumigated'.

What is the lightest element?

Hydrogen is the lightest element, with an atomic number of 1. Its most common form is just one proton and one electron.

Who discovered the four largest moons of Jupiter?

Italian scientist Galileo Galilei discovered Jupiter's four largest moons in 1610 using a telescope he improved himself.

Another fact

“Hydrogen is the most abundant element in the universe, making up about 75% of all normal matter by mass.”

More from this shelf

What saturation of sulfur dioxide will cause people to cough

What is the lightest element?

Who discovered the four largest moons of Jupiter?