11. Consider the following statements
    1. The sea water temperature of Red Sea is higher than that of Persian Gulf.
    2. The Baltic Sea water is more saline than that of Black Sea.
    Which of the statements given above is / are correct ?

1. 1. 1 only

   
   
   

   2. 2 only

   
   
   

   3. Both 1 and 2

   
   
   

   4. Neither 1 nor 2

   
   
   

---

1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: D

   NA

---

12. Assertion (A) : The temperature in the southern hemisphere is considerable lower than that in the northern hemisphere.
    Reason (R) : The large mass of ice-covered Antarctic continent is an important source of cold in the south.
    Codes:

1. 1. Both (A) and (R) are true and (R) is the correct explanation of (A)
      

   
   
   

   2. Both (A) and (R) are true but (R) is not the correct explanation of (A)
      

   
   
   

   3. (A) is true but (R) is false
      

   
   
   

   4. (A) is false but (R) is true
      

   
   
   

---

1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: B

   NA

---

---

13. Assertion (A) : The great Barrier Reef is located near Australia.
    Reason (R) : The coral plops grow in shallow, saline and warm waters.
    Code

1. 1. Both (A) and (R) are true and (R) is the correct explanation of (A)
      

   
   
   

   2. Both (A) and (R) are true but (R) is not the correct explanation of (A)
      

   
   
   

   3. (A) is true but (R) is false
      

   
   
   

   4. (A) is false but (R) is true
      

   
   
   

---

1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: B

   NA

---

14. Which one the following statements is not correct ?

1. 1. Most reef-forming corals prefer sea temperature between 17^°C and 33^°C

   
   
   

   2. Coral growth is usually restricted to the upper 25 or 30m of the sea

   
   
   

   3. Coral animals belong the organisms of Phylum Porifera

   
   
   

   4. Coral animals live in a mutualistic relationship with algae

   
   
   

---

1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: C

   NA

---

---

15. Consider the following statement
    1. Nearly 30% of the petroleum production in the world is from the offshore areas.
    2. The exclusive economic zone in the oceans extends up to 100 nautical miles from the coast.
    3. Only less than 1% of marine area is declared as protected area.
    4. The largest marine protected area is the Great Barrier Reef.
    Which of these statements are correct ?

1. 1. 1 and 2

   
   
   

   2. 1, 3 and 4

   
   
   

   3. 1 and 4

   
   
   

   4. 2 and 3

   
   
   

---

1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: B

   NA

---