Everyday Science

A transistor is an electronic device commonly used as a switch or amplifier in circuits, unlike a diode, resistor, or transformer which serve different functions.

The Moon always shows the same face to the Earth because its rotation period on its own axis is equal to its revolution period around the Earth, a phenomenon called synchronous rotation or tidal locking.

A pluviometer is an instrument used to measure the amount of rainfall over a period of time, making option C the correct answer.

Humans typically have 20 milk teeth (primary teeth) which eventually fall out and are replaced by permanent teeth. This is a well-established fact in human dental development.

The egg white, also known as the albumen, contains the majority of the egg's protein, whereas the yolk contains fats and some protein, and the shell is primarily calcium carbonate.

Short sightedness, or myopia, occurs when the eyeball is elongated, causing light to focus in front of the retina instead of on it, resulting in blurred distance vision.

Helium is commonly used in balloons and airships because it is a lighter-than-air, non-flammable gas, making it safer than hydrogen. Carbon and chlorine are not used for this purpose.

Lignite, bituminous, and anthracite are all ranks of coal, representing different stages of coal formation based on carbon content and heat exposure.

Samuel Hahnemann is recognized as the founder or 'Father of Homeopathy' because he developed the principles and practice of homeopathy in the late 18th century.

The face typically shows signs of aging earlier than other body parts due to constant exposure to environmental factors like sunlight and pollution, as well as frequent muscle movements. Therefore, the face is generally considered the first body part to show aging.