46. Which of the following features is not an aspect of vulcanicity ?

1. 1. Geyser

   
   
   

   2. Batholith

   
   
   

   3. Dyke

   
   
   

   4. Fold

   
   
   

---

1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: A

   NA

---

47. A volcanic eruption is most likely to be violent when

1. 1. The volcano is near to the sea

   
   
   

   2. The neck of the volcano is sealed by plug

   
   
   

   3. The lava is viscous

   
   
   

   4. The lava reaches the surface through a fissure

   
   
   

---

1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: C

   NA

---

---

48. Which one of the following pairs is not correctly matched ?

1. 1. OI Doinyo Lengai - Birthern Tanzania

   
   
   

   2. Mount Egmont - Hawaii

   
   
   

   3. Volcan Poas - Costa Rica

   
   
   

   4. Mount Klyuchevskaya - Kamchatka Peninsula

   
   
   

---

1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: B

   NA

---

49. Which one of the following types of volcanic eruptions is not usually exposive ?

1. 1. Pelean

   
   
   

   2. Hawaiian

   
   
   

   3. Strombolian

   
   
   

   4. Vulcanian

   
   
   

---

1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: B

   NA

---

---

50. Which of the following features is the product of vulcancity ?

1. 1. Geosyncline

   
   
   

   2. Escarpment

   
   
   

   3. Atoll

   
   
   

   4. Fold mountain

   
   
   

---

1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: C

   NA

---