1636: In which one of the following States are Namchik Namphuk Coalfields located?
(a) Manipur
(b) Mizoram
(c) Meghalaya
(d) Arunachal Pradesh
1637: What is the average fat content of buffalo milk ?
(a) 7.2%
(b) 4.5%
(c) 9.0%
(d) 10.0%
1638: Which one of the following is the continent with the highest mean elevation in the world ?
(a) Antarctica
(b) North America
(c) Asia
(d) South America
1639: Urea is prepared by the chemical reaction of:
(a) Ammonia and Carbon dioxide
(b) Ammonium sulphate and calcium chloride
(c) Acetamide and ethyl alcohol
(d) Chlorine and water
1640: A person walks 10 km north from a point, then he moves 20 km south and subsequently he turns 20 km north. He again turns 20 km south and then moves 10 km east. How far is he from the starting point?
(a) 10 km
(b) 20 km
(c) 30 km
(d) None of the above