Bats like the one shown in (figure 1) are mainly active at night. They have several senses that they use to find their way about, locate prey, avoid obstacles, and "see" in the dark. Besides the usual sense of vision, bats are able to emit high-frequency sound waves and hear the echo that bounces back when these sound waves hit an object. This sonar-like system is called echolocation. Typical frequencies emitted by bats are between 20 and 200 khz. Note that the human ear is sensitive only to frequencies as high as 20 khz.

Wats iqpow pls write 20 words for an answer

The alien enemies act of 1798 allowed the president to deport noncitizens considered dangerous. allowed the president to ignore laws he believed unconstitutional. made immigrants wait longer before becoming citizens. made it a crime to criticize the federal government. the alien enemies act of 1798 allowed the president to deport noncitizens considered dangerous. allowed the president to ignore laws he believed unconstitutional. made immigrants wait longer before becoming citizens. made it a crime to criticize the federal government.

In anton chekhov’s the proposal, lomov talks about how much land he owns instead of making romantic gestures while trying to propose to natalya. which idea influences lomavs behavior