Aradhya Vikrant

         Kay karav ata, Exam sathi, Abyass ka vichar tyachya Syllabus cha , mhnje kass jar punha postpone jhali tar syllabus tari paath hoel ashi apeksha, nahi tar kay jivanatt   pahilyandach ass watal hott ki hey tari purn hoel pan paha n ata hey pan ardhvatch rahil ass vatat ahe ata.          We people just think about ourselves oo sorry not this but only myself, right !             Why ? We do like this that no one want anything for their life, you know in our surronding many things are there that oppose us to not do anything but the human behaviour is that the things oppose you then you do the same thing !                       Then why not this time if they want to postpone our mission then we people try to restart the mission of our exam by studying more hard and give them surprise which is more costfull than this present tim...

 

         Ultrasonic sound is the sound which help animals to 👀 detect their enemies from long distance.  In our surrounding we know about this animals but we don't observed them like 🦇Bat,🐈 Cat, 🦮Dogs, etc.         Sometimes they hear, sound around their which are not able to hear by us means by humans or specially mammals because we have heard sound from 20 Hz to 20000 Hz.                  That's why we ignore their activities and one thing is that the human child means the👶 baby child have age less than 5 years also hear such kind of sound because of the capacity less than 20 Hz and we think that time the baby smiles just because of seeing our activities.