Question Paper
Class / Subject: Class 9 (SSC) · Geography (भूगोल)
Chapter: Chapter 6 — Chapter 6: The Properties of Sea Water
Time Allowed: 32 minutes
Max Marks: 16
1. What is salinity? [1]
(A) Amount of dissolved salts in seawater
(B) Amount of oxygen in seawater
(C) Water temperature
(D) Water depth
2. What is average ocean salinity roughly? [1]
(A) 35 parts per thousand
(B) 100 parts per thousand
(C) 1 part per thousand
(D) 350 parts per thousand
3. How does sea temperature vary with depth? [1]
(A) Colder at greater depths
(B) Warmer at greater depths
(C) No variation with depth
(D) Random variation
4. How does sea temperature vary with latitude? [1]
(A) Warmer near the equator
(B) Warmer near the poles
(C) No variation
(D) Colder near the equator
5. What makes seawater denser? [1]
(A) Colder temperature and higher salinity
(B) Warmer temperature and lower salinity
(C) Only temperature matters
(D) Only salinity matters
6. What does denser water do? [1]
(A) Sinks below less dense water
(B) Rises above less dense water
(C) Stays in place
(D) Evaporates immediately
7. What do these properties influence? [1]
(A) Ocean currents and marine ecosystems
(B) Nothing significant
(C) Only land temperature
(D) Only mountain formation
8. Why learn about seawater properties? [1]
(A) To understand ocean geography and currents
(B) No reason
(C) It's not useful
(D) Only for tests
9. What is salinity? [1]
(A) Amount of dissolved salts in seawater
(B) Amount of oxygen in seawater
(C) Water temperature
(D) Water depth
10. What is average ocean salinity roughly? [1]
(A) 35 parts per thousand
(B) 100 parts per thousand
(C) 1 part per thousand
(D) 350 parts per thousand
11. How does sea temperature vary with depth? [1]
(A) Colder at greater depths
(B) Warmer at greater depths
(C) No variation with depth
(D) Random variation
12. How does sea temperature vary with latitude? [1]
(A) Warmer near the equator
(B) Warmer near the poles
(C) No variation
(D) Colder near the equator
13. What makes seawater denser? [1]
(A) Colder temperature and higher salinity
(B) Warmer temperature and lower salinity
(C) Only temperature matters
(D) Only salinity matters
14. What does denser water do? [1]
(A) Sinks below less dense water
(B) Rises above less dense water
(C) Stays in place
(D) Evaporates immediately
15. What do these properties influence? [1]
(A) Ocean currents and marine ecosystems
(B) Nothing significant
(C) Only land temperature
(D) Only mountain formation
16. Why learn about seawater properties? [1]
(A) To understand ocean geography and currents
(B) No reason
(C) It's not useful
(D) Only for tests