71. Water vapour has several very important functional roles on our planet. These are

1. 1. It redistributes heat energy on the Earth through latent heat energy exchange

   
   
   

   2. The condensation of water vapour creates precipitation that falls to the Earth's surface providing needed fresh water for plants and animals

   
   
   

   3. It helps warm the Earth's atmosphere through the greenhouse effect

   
   
   

   4. All of the above

   
   
   

---

1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: D

   NA

---

72. The albedo of which one among the following is the highest ?

1. 1. Cirrus cloud

   
   
   

   2. Cumulonimbus cloud

   
   
   

   3. Melting snow

   
   
   

   4. Sand

   
   
   

---

1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: C

   NA

---

---

73. Which one of the following is the correct sequences in terms of descending values of Albedo ?

1. 1. Forest, snow, water

   
   
   

   2. Snow, forest, water

   
   
   

   3. water, snow, forest

   
   
   

   4. Forest, water, snow

   
   
   

---

1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: B

   NA

---

74. The approximate amount of the sun's energy called insolation which reaches the Earth's surface is

1. 1. 90%

   
   
   

   2. 75%

   
   
   

   3. 45%

   
   
   

   4. 50%

   
   
   

---

1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: D

   NA

---

---

75. The clouds extending from one side of horizon to other as a dark grey sheet having uniform based are called

1. 1. stratus clouds

   
   
   

   2. Cumulus clouds

   
   
   

   3. Circus clouds

   
   
   

   4. Nimbus clouds

   
   
   

---

1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: A

   NA

---