Questions

The acid and the nitrite form nitrous acid which then reacts with the amine.

An operating system is a program that acts as an intermediary between the user and the computer hardware. The purpose of an OS is to provide a convenient environment in which user can execute programs in a convenient and efficient manner. It is a resource allocator responsible for allocating system resources and a control program which controls the operation of the computer hardware.

Karewa sediments are treasures of many human civilizations and habitations. In fact, the agriculture of the valley dominantly survives and sustains on Karewa soils. The world famous saffron from Pampore and apples from Shopian are best examples.The famous almond orchids are best grown in the soils of karewas.

The karewas are mainly devoted to the cultivation of saffron, almond, walnut, apple and orchards.Ling nuts (singharas) grow throughout the East of India: West Bengal, Jharkhand, and Bihar are examples of such regions.

Photosynthesis is the process that converts solar energy into chemical energy. During the stage of light-dependent reactions involving photosystems I and II in photosynthesis, O2 produced.

It is due to the deficiency of Vitamin A. Retinol which is present in vitamin A. Its deficiency causes night blindness. It is available in carrots. 

Dr. Babasaheb Ambedkar International Airport is located in Nagpur of Maharashtra state in India.