For each of the following numbers, convert to a unit that replaces the power of ten by a metric prefix (write out the word for each prefix. For example, 3 x 10^9 g = 3 giga grams)
2.103 x 10^6 g = 2.103 micro grams
3.8 x 10^-6 g = 2.103 L = 2.103 mega liters
8.21 x 10^-3 m = 8.21 milli meters