471: Azolla gives a good biofertilizer when mixed with:
(a) Blue-green algae
(b) Cow dung
(c) Bone-meal
(d) Urea
472: What is/are common to the two historical places known as Ajanta and Mahabalipuram?
1. Both were built in the same period.
2. Both belong to the same religious denomination.
3. Both have rock-cut monuments.
Select the correct answer using the code given below.
(a) 1 and 2 only
(b) 3 only
(c) 1 and 3 only
(d) None of the statements given above is correct
473: The ruler of which one of the following States was removed from power by the British on the pretext of misgovernance?
(a) Jhansi
(b) French
(c) Awadh
(d) Satara
474: Which one of the following types of micro-organisms is most widely used in industries ?
(a) Bacteria
(b) Bacteria and fungi
(c) Bacteria and algae
(d) Bacteria, micro-algae and fungi
475: Bermuda triangle extends up to which of the following places ?
1. Southern Florida
2. Puerto Rico
3. Hawaii Islands
Select the correct answer using the code given below :
(a) 1, 2 and 3
(b) 1 and 2 only
(c) 2 and 3 only
(d) 1 and 3 only