Base values of 2,3,4,5,6,7,8,9,10,11,12,16,20, and 60, the numeral notation systems are called binary, ternary, quaternary, quinary, senary, septenary, octenary, nonary, denary, undenary, duodenary, hexadecimal, vigesimal, and sexagesimal, respectively.

Hence, next term would be septenary.

• Nerve Cell is the longest cell of the human body.
• The longest axons in the human body are those of the sciatic nerve, which run from the base of the spinal cord to the big toe of each foot.

• Minamata disease caused by mercury pollution.


• Itai-Itai disease caused by Cadmium pollution.


• The blue baby syndrome caused by Nitrate.

The scientific study of the Earth and its interior is known as Geology.
• Ethology is the science of animal behaviour.
• Ecology is the branch of biology related to the relation of organisms to one another and with their surroundings.
• Biology is the study of living organisms, their structure, chemical processes, development and evolutionary processes.

* India's first underwater train will soon get started in Kolkata under the Hooghly river.

* This train will bring ease to the people of Kolkata and pride to the people of India.

* The 16-kilometre long Kolkata Metro project will connect Salt Sector 5 with Howrah Maidan.

* Glycolysis is a metabolic pathway that functions with or without presence of oxygen.

* In humans, in aerobic conditions this process produce pyruvate and in anaerobic conditions produce lactate.

* The Jagannath Temple is located in Puri, Odisha.

* The name 'Jagannath' is derived from the word 'Jagat Nath', which means the 'Lord of the Universe'.

* The deities of Jagannath, Balabhadra and Subhadra are worshipped in the temple.

* The idols of these deities are made from wood.

* An annual Rath Yatra or the Chariot Festival is held in Puri for Lord Jagannath.

* It is a major pilgrimage destination for Hindus and is a part of the “Char Dham” pilgrimages.

From statement I – code for happy is either ‘ke’ or ‘ne’.
From statement II – code for happy is ‘ke’.

Total surface area = 3π r² 
= 41.58
Curved surface area = 2π r²
=41.58 * 2/3 = 27.72 cm²