A limestone cave was formed by . A) faults due to earthquakes
B) glacial drift
C) organisms digging
D) chemical weathering or water erosion

Listening is also important because you spend more time listening than participating in any other communication activity. in fact, you spend more time listening to others than doing almost anything else. typical americans spend more than 80 percent of any average day communicating with other people l. they spend 45 percent of that communication time listening to others. which sentence states the main idea?