Environmental Studies Pollutants TS TET MCQ

28 Latitude of tropic cancer is ..... 1. 23 1/2 north latitude 2. 23 1/2 south latitude 3. 0 middle latitude 4. none

27 Total number of longitudes on the earth ....... 1. 180 2. 90 3. 360 4. none

26 Number of latitudes on each hemisphere is ...... 1. 180 2. 90 3. 270 4. none

25 0 latitudes is called as ...... 1. middle latitude 2. half latitude 3. equator 4. none

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24 Phases of the moon take place in ....... days 1. every 20 2. every 16 3. every 15 4. none

23 The serial number of our earth among planets around the sun is ....... 1. 5 2. 4 3. 3 4. none

22 The shape of earth is ...... 1. round 2. spherical 3. rectangle 4. none

21 Sea water is purified ....... 1. by boiling 2. by cooling 3. by filtration 4. none

20 Decantation takes place in ....... 1. filtration tank 2. chlorination tank 3. sedimentation tank 4. none

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