79) Whiptail is a disorder of cauliflower due to deficiency of -

80) Which of the following hills are found where the Eastern Ghats and the Western Ghats meet?

81) Tunga Bhadra is a tributary of -

82) Which of the following statements regarding the Deccan Traps is/are correct?
1. Intense volcanic activity in the form of fissure eruption took place towards the end of Cretaceous period
2. The volcanic lava spread out in horizontal sheets.

83) Forestation prevents -