giga- and micro- are 10^9 and 10^-6. How many micrograms would there be in one gigagram?

how is this the answer 1,000,000,000,000,000

Yes, or 10^15

To find out how many micrograms there are in one gigagram, we need to convert both units to a common measurement.

We know that "giga-" represents 10^9 (billion) and "mega-" represents 10^-6 (million).

Starting with "giga-", we can convert gigagrams to grams and then to micrograms.

1 gigagram = 1,000,000,000 grams, since there are 1 billion grams in one gigagram.

Now, to convert grams to micrograms, we multiply by 1,000,000, which is the conversion factor from grams to micrograms.

1,000,000,000 grams * 1,000,000 micrograms/gram = 1,000,000,000,000,000 micrograms

Therefore, there are 1,000,000,000,000,000 micrograms in one gigagram.