Actually, I think there are four different elements: water, fire, earth, air. Or, at least according to W.I.T.C.H. I don't really know in terms of science.
Which of these is not of the three main classes of elements?Read more: Which_of_these_is_not_of_the_three_main_classes_of_elements
The three main elements included on an envelope are the recipient's address, the sender's return address, and postage.
metals, metalloids, and nonmetals.
The three main elements of medical care are prevention (to reduce the risk of illness), diagnosis (to identify health issues), and treatment (to provide appropriate care and support).
The three kinds of balance are symmetrical balance (mirror image on both sides of a central axis), asymmetrical balance (different elements on each side but equally weighted), and radial balance (elements radiating out from a central point).
Red blood cells!
The three main elements of a triangle are its three sides, three angles, and three vertices.
Three main ways to travel is by car, plane, and boat.
Carbon, hydrogen, and oxygen are the three main elements that make up living things.
The three main parts of an element are protons, neutrons, and electrons.
There are three main elements of positive interaction. One of these elements is a positive and happy demeanor when greeting someone.
This is one of the three main kinds of bluebirds.
Bus, Train, and Airplane
Three main ways to travel is by car, plane, and boat.
you find it
Potassium
Which of these is not of the three main classes of elements?Read more: Which_of_these_is_not_of_the_three_main_classes_of_elements