Which element is the primary component of natural gas used for cooking and heating?

Which type of fat is generally considered healthier and is commonly found in foods like olive oil and nuts?

Which essential mineral is critical for oxygen transport in the blood as a key component of hemoglobin?

Which scientist developed the process of pasteurization and contributed significantly to the germ theory of disease?

Which simple machine is used in a pair of scissors?

Which instrument is used to measure humidity levels in the atmosphere?