UPSC · Environment · Odd One Out — Environment

Exercise and reference answers

Questions

1. Items

   1. Tiger
   2. Lion
   3. Elephant
   4. Chimpanzee

   Reason

   Chimpanzees are NOT native to India; the other three are large Indian wildlife species.

   Odd item

   Chimpanzee

2. Items

   1. Oxygen
   2. Ozone
   3. Methane
   4. Carbon Dioxide

   Reason

   Oxygen is NOT a greenhouse gas; the other three trap atmospheric heat.

   Odd item

   Oxygen

3. Items

   1. Wind
   2. Coal
   3. Sun
   4. Hydropower

   Reason

   Coal is a non-renewable fossil fuel; the others are renewable energy sources.

   Odd item

   Coal

4. Items

   1. Sundarbans
   2. Western Ghats
   3. Sahara
   4. Eastern Himalaya

   Reason

   Sahara is in Africa; the others are Indian biodiversity hotspots.

   Odd item

   Sahara

5. Items

   1. Project Tiger
   2. Project Elephant
   3. Project Crocodile
   4. Operation Polo

   Reason

   Operation Polo was a 1948 military action in Hyderabad; the others are wildlife conservation programs.

   Odd item

   Operation Polo

Instructions

Tap the outlier in each environment group.