Why are earths materials and energy considered to be in equilibrium
-earths materials are recycled and reused constantly
-earths materials are all divided in equal amounts
-energy is balanced and cannot be created or destroyed
-energy is always converted into usable forms

Look at the illustration of four letters from the american manual alphabet. decide whether the description of the letter is a good definition. if not, choose a counterexample. the letter i is formed by sticking up the smallest finger and folding all the other fingers into the palm of your hand with the thumb folded over them while keeping your hand still.