It would be the textbook glossary. A dictionary would be equally useful, but in a science class the teacher would want students to rely on the textbook glossary.
The relationship between language and emotions can be viewed from two angles. First, language, in a broad sense, can be viewed as being done [performed] "emotive". Taking this angle, it is commonly assumed that people, at least on occasions, "have<span>" emotions, and that "being emotional" gains its own agency, impacting in a variety of ways on the communicative situation</span>
This is because the sound you make when you say x is ex thus using a but when you make the b sound it sounds like be.
Answer:
But what is your topic? I can't help you without knowing the topic
