Question Paper
Class / Subject: Class 7 (ICSE) · Science
Chapter: Chapter 19 — Chapter 19: Excretion in Humans
Time Allowed: 32 minutes
Max Marks: 16
1. What is excretion? [1]
(A) Removing waste products from the body
(B) Only digesting food
(C) Only breathing in
(D) Nothing useful
2. What do kidneys filter? [1]
(A) Blood, to remove waste
(B) Only air
(C) Only food
(D) Nothing
3. What waste do kidneys remove? [1]
(A) Urea
(B) Only carbon dioxide
(C) Only sweat
(D) Nothing
4. Where is urine stored before excretion? [1]
(A) The bladder
(B) The lungs
(C) The stomach
(D) The skin
5. What do lungs excrete? [1]
(A) Carbon dioxide
(B) Urea
(C) Sweat
(D) Nothing
6. What does the skin excrete? [1]
(A) Sweat
(B) Urine
(C) Carbon dioxide
(D) Nothing
7. What else does sweat help with? [1]
(A) Regulating body temperature
(B) Digesting food
(C) Breathing
(D) Nothing useful
8. Why is excretion important? [1]
(A) It removes toxins and keeps the body balanced
(B) It has no importance
(C) Only for temperature
(D) It's not important
9. What is excretion? [1]
(A) Removing waste products from the body
(B) Only digesting food
(C) Only breathing in
(D) Nothing useful
10. What do kidneys filter? [1]
(A) Blood, to remove waste
(B) Only air
(C) Only food
(D) Nothing
11. What waste do kidneys remove? [1]
(A) Urea
(B) Only carbon dioxide
(C) Only sweat
(D) Nothing
12. Where is urine stored before excretion? [1]
(A) The bladder
(B) The lungs
(C) The stomach
(D) The skin
13. What do lungs excrete? [1]
(A) Carbon dioxide
(B) Urea
(C) Sweat
(D) Nothing
14. What does the skin excrete? [1]
(A) Sweat
(B) Urine
(C) Carbon dioxide
(D) Nothing
15. What else does sweat help with? [1]
(A) Regulating body temperature
(B) Digesting food
(C) Breathing
(D) Nothing useful
16. Why is excretion important? [1]
(A) It removes toxins and keeps the body balanced
(B) It has no importance
(C) Only for temperature
(D) It's not important