Besides hard and soft, what other ways can you think of that could be used to divide non-living things into two groups?

Besides hard and soft, conductors and isolators is another group to divide non-living things into two groups.

Explanation:

The general classification is a very hard task to do. However, if we think in absolutes we will be able to find ways to divide non-living things into two groups. Think about one thing, for example, flammable or not flammable, shinny, or opaque. We just need to find a characteristic and them see if we can group non-living things below them.

9.9 years

a = p(1 + rt) . . account balance after time t at rate r starting with principal p

3000 = 2500(1 + 0.0202t) . . filling in the given numbers

1.2 = 1 + 0.0202t . . divide by 2500

0.2 = 0.0202t . . . subtract 1

0.2/0.0202 = t ≈ 9.901

it will take about 9.9 years for the account balance to reach $3000.

this transfer is call conjunction