The concentration Index was calculated by
(i) Total population and total cultivable area in terms of persons per km$^{2}$.
(ii) Dividing actual population of the district by the average population of a district.
(iii) Total population be correlated to the land area weighted according to its productivity.

Match the following :

Which of the following statements are true about the location and extent of India?
(i) India is divided into almost two equal halves by tropic of cancer.
(ii) India is the second largest country of the world in area.
(iii) The latitude and longitudinal extend is nearly thirty degrees.
(iv) The standard meridian of India passes through Bhopal

Assertion [A] : High density lipoproteins transport cholesterol from peripheral tissues to the liver.
Reason [R] : The elevation of lipids in plasma leads to the deposition of cholesterol on the arterial walls, leading to atherosclerosis.

Choose the stronger acid in each of the following pair.
(i) $H_{3}O^{+}$ or $H_{2}O$
(ii) $NH_{4}^{+}$ or $NH_{3}$
(iii) $H_{2}S$ or $HS^{-}$
(iv) $H_{2}O$ or $OH^{-}$

The interaction of biotic potential with environmental resources, as seen in populations showing the S-shaped growth curve, as: $\dfrac{dN}{dt} = \dfrac{rN(N-K)}{K}$ where N is the number of individuals in the population, t is the time, r is the biotic potential of the organism concerned and K stands for

Consider the following statements :
Assertion [A] : Simorgh (phoenix) launched two satellites.
Reason [R]: It is a satellite carrier rocket
Now select your answer scheme given below:

Virtual G20 digital Economy Ministers Summit 2020 was organised by

Where is the largest solar power project of India located?

Justice. D. Murugesan Committee has been constituted in 2021 to look into the matter of