Jenni's 72-year-old grandfather has difficulty understanding her when she speaks, but he seems to understand her father much better. why might this be?

People over 70 typically have difficulty with sounds over 6000 Hz. The capability to hear deteriorates with age, though the loss is utmost for high frequency sounds. At age 70, for instance, sensitivity to sounds at 1,000 Hz is preserved, while sensitivity to sounds at 8,000 Hz is evidently diminished. As many as 75 percent of people over 70 years of age have experienced some decline in their hearing distance.

every society, in order to meet the needs of it's people, has to answer three basic questions:

- what should we produce?

- how should we produce it?

- for whom should we produce it?

this questions must be answered in order to, option b, aid in production decisions.

every country can't produce everything, no matter how rich their land is. it may be a matter of technology, resources or geographical conditions. so, these three questions must be resolved in order to get the most of the production of each land.

hope this !

1. senate

2.there is no diagram

3.education