Which of the following descibes an arithmetic sequence? a. a sequence in which the sum of any two consecutive terms is a constant b. a sequence in which the difference between any two consecutive terms is a constant c. a sequence in which the product of any two consecutive terms is a constant d. a sequence in which the quotient of any two consecutive terms is a constant

The table below shows the approximate masses of a dust particle and a grain of pollen. dust particle 0.000000778 g grain of pollen 0.00000000155 g the mass of a dust particle can be estimated and written in the form a × 10^b, where a = 8 and b = the mass of a grain of pollen can be estimated and written in the form a × 10^b, where a = 2 and b = based on the estimates, the mass of a dust particle is approximately blank times larger than the mass of a grain of pollen.