What is the basic principle of preservation?

Year made M1 grand? What animals live in the subfloor of a rainforest? Is a tumbleweed a producer consumer or decomposer? What is 45 of 25? What are some tips on playing operation gumball on webkinz? Is the difference of two irrational numbers irrational? Are baked ruffles healthier than normal ones? How are potential and kinetic energy related? Can you be a neurologist and a neurosurgeon? Who can suggest changes to the Constitution? What is 2 divided by 0.01? What kind of acid is used in jewelry? What is the largest six-digit number divisible by 9? What does soboxin look like? What is the purpose of the i will fight no more forever speech in literature? How fast does spearmint grow compared to other herbs? Why were the Phoenicians known as a Great Sea Power? Where can you watch jeopardy episodes? Is the number 48 a square number? What you think that in future how we will use computer in our daily lives?