51). What is the main component of bones and teeth?
| A). Calcium carbonate |
| B). Calcium phosphate |
| C). Calcium sulphate |
| D). Calcium nitrate |
|
52). Night blindness is caused due to deficiency of
| A). vitamin A |
| B). vitamin B |
| C). vitamin K |
| D). vitamin E |
|
53). The blood enters the aorta from
A). left ventricle
|
| B). left auricle |
C). right ventricle
|
| D). right auricle |
|
54). In eye donation, which one of the following parts of donors eye is utilized?
| A). Iris |
| B). Lens |
| C). Cornea |
| D). Retina |
|
55). In scorpion, poison is present in the
| A). Leg |
| B). Hand |
| C). Mouth |
| D). Sting |
|
56). Which sequence explain complete metamorphosis?
| A). Egg - Larva - Adult |
| B). Larva - Pupa - Adult |
| C). Egg - Nymph - Adult |
| D). Egg - Larva - Pupa - Adult |
|
57). Who was the Arab ruler who launched 17 attacks on India?
| A). Muhammad-bin-Qasim |
| B). Muhammad of Ghazni |
| C). Muhammed of Ghori |
| D). Muhammad-bin-Tughluq |
|
58). First regular census was taken in
| A). 1881 A.D |
| B). 1891 A.D |
| C). 1901 A.D |
| D). 1911 A.D |
|
59). Salt tax under the Cholas was
| A). Bhaga |
B). Uppayam
|
| C). Valiayam |
| D). Hiranya |
|
60). The last Mauryan ruler was overthrown by
| A). Agnimitra |
| B). Kharavela |
| C). Pushyamitra |
| D). Dhanananda |
|
