CBSE/NCERT/Exercises/Class_07_Science
Created by Titas Mallick
Biology Teacher • M.Sc. Botany • B.Ed. • CTET (CBSE) • CISCE Examiner
BioNotesBioNotesCreated by Titas Mallick
Biology Teacher • M.Sc. Botany • B.Ed. • CTET (CBSE) • CISCE Examiner
Online
Questions and Answers for Chapter 9
1. Complete the journey of food through the alimentary canal:
2. Sahil (chapati), Neha (chewed chapati), and Santushti (mashed potato) add iodine. Observations:
3. What is the role of the diaphragm in breathing?
4. Match the following:
5. Anil claims respiration and breathing are the same. Questions to ask:
6. Which statement is correct and why?
7. Why do we sneeze when we inhale dust-laden air?
8. Why was Anusha breathing faster than Paridhi after running?
9. Yadu’s experiment with saliva and rice flour:
10. Rakshita’s experiment with lime water: