What is the name of the theory that explains the origin of the universe, suggesting an initial singularity followed by rapid expansion?

In which medium does sound travel fastest?

What type of lens converges light rays to a single point?

Which moon of Saturn is known for its geysers of water vapor erupting from its icy surface?

What is the primary function of the ozone layer in the Earth's atmosphere?

What is the process of converting a gas to a liquid called?

What is the powerhouse of the cell, responsible for energy production?

What is the chemical formula for methane?

What is the chemical symbol for helium?

What is the law of reflection for light?