Which household water purification method uses ultraviolet light to kill bacteria and viruses?

Which preservation technique uses controlled heating to kill harmful microorganisms in liquids like milk?

Which common disease is caused by a deficiency of insulin or the body's inability to use insulin effectively?

Which law of motion explains why passengers lurch forward when a moving bus suddenly stops?

Which gas do plants primarily absorb during photosynthesis?

What is the normal body temperature of a healthy human in degrees Fahrenheit?