4446: The word Adivasi was used for the first time to refer to the tribal people by
(a) Mahatma Gandhi
(b) Thakkar Bappa
(c) Jyotiba Phule
(d) B.R. Ambedkar
4447: The Russian traveller who visited the Deccan during the medieval period of Indian history was
(a) Rastyannikov
(b) Shirokov
(c) Pavlov
(d) Nikitin
4448: Which one of the Chola kings conquered Ceylon ?
(a) Aditya I
(b) Rajaraja I
(c) Rajendra
(d) Vijayalaya
4449: Consider the following Pairs : Wetlands Confluence of rivers
1. Harike Wetlands : Confluence of Beas and Satluj/Sutlej
2. Keoladeo Ghana : Confluence of National Park Banas and Chambal
3. Kolleru Lake : Confluence of Musi and Krishna
Which of the above pairs is/are correctly matched?
(a) 1 only
(b) 2 and 3
(c) 1 and 3
(d) 1, 2 and 3
4450: Due to their extensive rice cultivation, some regions may be contributing to global warming. To what possible reason/reasons is this attributable ?
1. The anaerobic conditions associated with rice cultivation cause the emission of methane.
2. When nitrogen based fertilizers are used, nitrous oxide, is emitted from the cultivated soil.
Which of the statements given above is/are correct ?
(a) 1 only
(b) 2 only
(c) Both 1 and 2
(d) Neither 1 nor 2