Questions

Conduction is the movement of heat through a substance by the collision of molecules. It occurs when two object at different temperatures are in contact with each other. Heat flows from the warmer to the cooler object until they are both at the same temperature.

Fragmentation occurs in a dynamic memory allocation system when many of the free blocks are too small to satisfy any request.

The capacity of a water heater is measured in Gallons or Liters. In the USA, it is measured in Gallons and in India, we measure it in Liters.

Hence, if the capacity of the water heater is 15 gallons or 15 liters, then it says that it can hold 15 gallons or 15 liters of water.

Pharaoh is the common title of the monarchs of ancient Egypt.

The Pharaoh in ancient Egypt was the political and religious leader of the people and held the titles 'Lord of the Two Lands' and 'High Priest of Every Temple'.

The principal hormone secreted by the corpus luteum is progesterone. Menstruation is triggered by a drop in the levels of progesterone.

Study of Life in outer space or search of life external to Earth is known as Exobiology.

Urea is a by product of amino acid catabolism, Which occurs in the liver. The nitrogen in the  amino acid becomes converted to ammonia and this is further converted by the liver into urea