Is essential and critical a synonym?

What is 750000 in roman numerals? What is the series of steps scientists use to answer questions and solve problems? How do the branches use the pentagon and split up the duties? How is Rene descartes a role model in critical and creative thinking? What is the roman numeral MMDC? What is Quotient divisor and dividend in a division problem? What is the probability that 4 comes up when a dice is rolled? Can two odd numbers and one even number have a LCM which is even? What are the components of a fire triangle? Why information useful? What does 404 times 83 equal? How can you use dilations to solve real world problems? What is a point that bisects a segment into two congruent segment? How can you convert 3.2 into a fraction or mixed number? What percent does the ratio 1 to 1 equal? Is iota a negative connotation? What is absolute setpoint? How many syllables are in kitchen? How do you find 'x' when 'x' times negative 2 equals negative 2? How do you solve distributive and procedural injustice?