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Rickets is caused by deficiency of ?

  • Vitamin A
  • Vitamin C
  • Vitamin D
  • Vitamin E

Answer: Option C

Similar Questions :

1. What is scientific name of Mango ?

  • Bos indicus
  • Mangifera indica
  • Musca domestica
  • Oryza sativa

Answer: Option B

Explanation:

Bos indicus is scientific name of Cow.

Musca domestica is scientific name of Housefly.

Oryza sativa is scientific name of Rice.

2. Which one of the following air pollution can affect blood stream leading to death ?

  • Cadmium
  • Asbestos dust
  • Carbon monodioxide
  • Lead

Answer: Option C

3. The most abundant constituent of atmospheric air is ?

  • Oxygen
  • Hydrogen
  • Carbon
  • Nitrogen

Answer: Option D

4. Who invented Polio Vaccine ?

  • Harrison and Sympson
  • Johan E. Salk
  • Luvenhauk - Leeuwenhock
  • Karl Landsteiner

Answer: Option B

Explanation:

Harrison and Sympson invented chloroform,

Luvenhauk - Leeuwenhock invented Bacteria,

Karl Landsteiner invented Blood Transfer.

5. Plants developing in dry conditions are ?

  • lithophytes
  • xerophytes
  • mesophytes
  • hydrophytes

Answer: Option B

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