At which one of the following places are cave paintings of prehistoric times found ?

Which of the following are sources of methane, a greenhouse gas ?

1. Domestic animals
2. Coal mining
3. Wetlands

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India is a member of :

1. Asia-Pacific Economic Cooperation (APEC)
2. Asian Development Bank (ADB)
3. Organization for Economic Cooperation and Development (OECD)
4. World Trade Organization (WTO)

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Consider the following pairs :

Which of the above pairs are correctly matched ?

Which one of the following became extinct in India a few decades ago and is proposed to be re-introduced ?

Which one of the following is spread over three States ?