Question

Q.1(A)Complete the statements choosing correct option : [2]

1. Seawater upto the death of 500m is called ........... .

(a) ground water (b) surface water

(c) deep water (d) saline water

2. In .............. areas the salinity of sea water is low.

(a) equatorial (b) mid-latitudinal

(c) temperate (d) polar

3. The buoyancy of the sea water increases because of its ........ .

(a) evaporation (b) salinity

(c) density (d) high temperature

4. .......... is a major property of the sea water.

(a) Temperature (b) Unitform salinity

(c) Buoyancy (d) Equal Density

(B) Answer the following questions in one sentence each : [4]

1. What is the major property of seawater ?

2. What is the average surface temperature of seawater in equatorial

areas, mid latitudes & poles ?

3. After what depth is the seawater temperature uniform everywhere ?

4. Which is the most saline ocean ?

(C) Tick the correct Box according to the Salinity of the Ocean water. [2]

a. Slanting sunrays, melting snow.

b. Less supply of freshwater, desert area around.

Q.2 Give geographical reasons : [6]

1. Oceans located at the same latitude, do not have the same salinity.

2. Salinity is low in the land-locked Baltic Sea.

3. There is higher salinity in the northern Red Sea while lower in the

southern.

STB : IX MARKS : 20

DATE - 24/12/2020

GEOGRAPHY TIME : 1 HRS CH 6. Properties of Sea Water

Salinity

High Median Low​

Answer 1

Answer:

the answer is A,B,C,D.............