Some things on the SAT are eminently predictable. You will be given a persuasive essay in the reading section. Make sure that you are clear on what is being argued and how it is being argued. You will be asked questions on punctuation. Make sure you know the rules. You will need to know about imaginary numbers, how to factor quadratic equations, what are the dimensions of a 30-60-90 triangle. Now is the time to master the techniques and knowledge needed for success! Success on the predictable questions will give you confidence when you face the inevitable unpredictable questions, like this one!!!

All 5 building blocks of DNA, RNA found in meteorites from Canada, U.S., Australia