Use this A2-B1 ESL science reading passage to learn why frogs croak. It includes key vocabulary, reading comprehension questions, and answers for English learners.Reading LevelA2-B1Word Count204 wordsReading PassageFrogs make many sounds. One common sound is a croak. Frogs do not croak just to make noise. Their calls help them communicate.Many frog calls come from male frogs. A male frog may cro..