11.  Technology has provided more efficient tractors and conveyer belts, but no machine can reduce the human effort required for harvest.

12.  Still, the greater point about the church may be the human effort a record of survival like this implies.

13.  There is an uncanny, strangely appropriate relationship of distances and human physical effort.

14.  They are surviving symbols of love, art, and human effort that link us to the past and to our families.

15.  This country has a small stockpile of plutonium, accumulated at great cost of money and human effort.

16.  Two weeks ago, human efforts combined with seasonal rains ended the threat to the Chimalapas jungle preserve in southeastern Mexico.

17.  Yet, the alternative is to believe that the only change that can come in this world must come through human effort alone.

18.  Both teams say they have people ready to volunteer for the first human effort.

19.  Figuratively, it means the highest goal of human effort.

20.  Given the magnitude of the disaster and extreme dry weather, Mohrahd said the fires would most likely be extinguished by rain rather than by human efforts.