If the barometer rises, it indicates that good or fair weather is coming and if the falling barometer reading indicates that bad or foul weather is coming. Usually bad weather approaches from the west direction.

We require vitamins B & C for hair growth. But Vitamin B such as Vitamin B7 or Biotin is required for the growth of hair.

Niacin is the name for vitamin(B3).

Liver can produce small amount of niacin from tryptophan.

To produce 1 mg of niacin we require 60 mg of tryptophan.

Radioactive decay is likely to occur when the nuclei of an atom doesn't have enough binding energy to hold the nucleus together due to excess of rotons or nutrons in it.

One turn of the citric acid cycle produces

1. Two molecules of carbon dioxide are released.

2. One molecule of ATP or GTP is produced.

3. Tree molecules of NADH and one molecule of FADH2 are generated.

A sudden loss of memory is a symptom of Amnesia which is caused by an injury or damage to our brain. In that situation we cannot remember about ourself and our life.

Jallianwala Bagh Massacre took place on 13th April 1919. About 380 people were died and 1200 were wounded in the massacre.