What is an example of something that is finite?
a. space
b. water
C. time
d. numbers

b. water

Explanation:

Space, Time, and Numbers are everlasting.  They all are infinite, or go on to and beyond infinity.  Water is something that can be scare. Water is a finite resource: there are some 1,400 million cubic kilometres on earth and circulating through the hydrological cycle. Nearly all of this is salt water and most of the rest is frozen or under ground.  In many countries, the amount of water available to each person is falling, as populations rise.

even though there may be variations in human emotions over time, the poem “ a contribution to statistics” by wislawa symborska suggests that the only unchangeable characteristic is mortality.

the author poses a distinction between the approximate and non-approximate numbers which correspond to our need for certainty in life and the difficulty of achieving it. our efforts to measure the exact often fail because the world is not always clearly structured .the poem seems to imply   that the only thing that is certain and has an exact number is death.  

i think it is a conjuction because it is definitly not a preposition