Deficiency of Vitamin-D results in :

1. Deficiency of Vitamin-D results in __________.

A. night blindness

B. rickets

C. scurvy
D. hair fall

2. The SI unit of "pressure" is _________.

A. pascal

B. joule
C. tesla
D. henry

3. The most densest substance on the Earth is __________.

A. Platinum
B. Copper
C. Steel

D. Osmium