Questions

Based on conventionality in deriving energy, energy sources could be classified as

Conventional ::

coal, oil, hydro, nuclear, etc... sources which can be used up or exhaustible.

(and)

Non - conventional ::

solar, wind, tidal, geothermal, biogas, etc... sources which are not exhausted.

Among the given options, Geothermal energy is the alternative energy source among all the choices that are given in the question, that is exhaustible.

Synapsis is the pairing of two homologous chromosomes that occurs during meiosis. It allows matching-up of homologous pairs prior to their segregation, and possible chromosomal crossover between them.

Synapsis takes place during prophase I of meiosis.

It is also called as Syndesis.

Prahaar is a contemporary weapon system capable of carrying multiple types of warheads & neutralizing a wide variety of targets. It is a indigenously developed surface-to-surface tactical missile by DRDO.

1) G.V. Mavalankar (1952-56)

2) M.A. Ayyangar (1956-57 & 1957-62)

3) Hukam Singh (1962-67)

4) N. Sanjiva Reddy (1967-69)

5) Gurdial Singh Dhillon (1969-1971 & 1971-1975)

6) Bali Ram Bhagat (19976-77)

7) K.S. Hegde (1977-80)

8) Balram Jakhar (1980-1984 & 1984-1989)

9) Rabi Ray (1989-91)

10) Shivraj Patil (1991-96)

11) P.A. Sangma (1996-98)

12) G.M.C. Balayogi (1998-99 & 1999-2002)

 13) Manohar Joshi (2002-04)

14) Somnath Chatterjee (2004-09)

15) Meira Kumar (2009-14)

16) Sumitra Mahajan (2014-19)

17) Om Birla (2019 -)

Before transferring the fish, the position is the man with the fish and the bucket of water. After transferring the position is: the man without the fish, but the fish inside the water in the bucket. Thus to know  whether there is any change in weight, it is enough to consider whether there is any change in weight when the fish in air is transferred into the water. The answer is there is no change as when in water though it loses weight due to upthrust of water on it, the level of water increases and exerts an equal force at the bottom.So, (c) is correct.

"National Volunteer Day" & "International Peace Day" are observed on 21st september every year.