The country with the world's largest natural gas reserves is

• Saudi Arabia

• Kuwait

• Russia

• The USA

GIS stands for

• Geographical Integrated System

• Geographical Information System

• Geometrical Integrated System

• General Immunity System

National AIDS research Institute is at

• Chennai

• New Delhi

• Mumbai

• Pune

Formic acid is produced by

• white ants

• cockroaches

• red ants

• mosquitoes

Casuarina is a

• hydrophyte

• mesophyte

• xerophyte

• epiphyte