According to the serial number of the questions asked in the official question paper of UPSC

13 . Discuss the concept of air mass and explain its role in macro-climatic changes.

14 . “The Himalayas are highly prone to landslides.” Discuss the causes and suggest suitable measures of mitigation.

15 . The effective management of land and water resources will drastically reduce the human miseries. Explain.

16 . South China Sea has assumed great geopolitical significance in the present context. Comment.

17 . Major cities of India are becoming more vulnerable to flood conditions. Discuss.

18 . Present an account of the Indus Water Treaty and examine its ecological, economic and political implications in the context of changing bilateral relations.

19 . Enumerate the problems and prospects of inland water transport in India.

20 . In what way micro-watershed Development projects help in water conservation in drought prone and semi-arid regions of India.

Also refer : UPSC MAINS 2016 GS PAPER I https://fotisedu.com/upsc-mains-2016-gs-paper-i/

UPSC MAINS 2016 GS PAPER II https://fotisedu.com/upsc-mains-2016-gs-paper-ii/

UPSC MAINS 2016 GS PAPER III https://fotisedu.com/upsc-mains-2016-gs-paper-iii/

UPSC MAINS 2016 GS PAPER IV https://fotisedu.com/upsc-mains-2016-gs-paper-iv/