Q1Written answer
Just like birds and dolphins you can also make your own language of sounds for giving messages. Remember you have to talk to your friends with only sounds and no words. How and when will you need to give an alarm call? For example, when the teacher is coming to the classroom!
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Worked solution
Answer: To give out an alarm call to our friends when the teacher is coming to the classroom, we can use sounds like ping-ping, tik-tik, etc., where everyone can follow accordingly.