2861: Which one among the following is not a good source of nutritional calcium?
(a) Egg
(b) Skimmed milk
(c) Ragi
(d) Rice
2862: Neutron was discovered by:
(a) Ouo Hahn
(b) Enrico Fermi
(c) Lise Meitner
(d) James Chadwick
2863: Who among the following was/were associated with the introduction of Ryotwari Settlement in India during the British rule?
1. Lord Cornwallis
2. Alexander Reed
3. Thomas Munro
Select the correct answer using the code given below:
(a) 1 only
(b) 1 and 3 only
(c) 2 and 3 only
(d) 1, 2 and 3
2864: Which bacterial strain, developed from natural isolates by genetic manipulations, can be used for treating oil spills ?
(a) Agrobacterium
(b) Pseudomonas
(c) Nitrosomonas
(d) Clostridium
2865: If water contracts on freezing, which of the following would happen?
(a) Icebergs will completely float on the surface of water
(b) Ice would become more dense
(c) Lakes would freeze from top to bottom
(d) Rocks will crack due to freezing or internal water