Q. Which tree, once very popular in social forestry, is now taken to be environmental hazard?

? Eucalyptus

Q. In which animal is respiration done by skin?

? Frog

Q. Which was the first newspaper to be published in India?

? Bengal Gazette

Q. ‘Gobar gas’ contains mainly which gas?

? Methane

Q. Which rocks is transformed into marble?

? Limestone

Q. Which ‘Englishmen was fellow of Gandhiji in South Africa?

? Polak

Q. Where is the Sargasso sea located?

? North Atlantic Ocean

Q. Which type of glass is used for making glass reinforced plastic?

? Quartz glass

Q. Which is the greatest known ocean depth (which lies in the Pacific Ocean)?

? 11,033 m

Q. At which one place did Mahatma Gandhi first start his Satyagraha in India?

? Champaran