All the statements are correct.

The Constitution expressly secure the predominance of the Union List over the State List and the Concurrent List, and that of the Concurrent List over the State List. Thus, in case of overlapping between the Union List and the State List, the former should prevail.

In case of overlapping between the Union List and the Concurrent List, it is again the former which should prevail. Where there is a conflict between the Concurrent List and the State List, it is the former that should prevail.

In case of a conflict between the Central law and the state law on a subject enumerated in the Concurrent List, the Central law prevails over the state law. But, if the state law has been reserved for the consideration of the president and has received his assent, then the state law prevails in that state. But, it would still be competent for the Parliament to override such a law by subsequently making a law on the same matter.

Statement 1 is correct. Inner cabinet (Kitchen cabinet) is an informal body consists of the prime minister and two to four influential colleagues in whom he has faith and with whom he can discuss every problem. It advises the prime minister on important political and administrative issues and assists him in making crucial decisions. It is composed of not only cabinet ministers but also outsiders like friends and family members of the prime minister.

Merits of Kitchen Cabinet

1. It being a small unit, is much more efficient decision-making body than a large cabinet.
2. It can meet more often and deal with business much more expeditiously than the large cabinet

It helps the Prime Minister in maintaining secrecy in making decisions on important political issues.

Demerits of Kitchen Cabinet

It reduces the authority and status of the cabinet as the highest decision-making body. Statement 2 is incorrect.

It circumvents the legal process by allowing outside persons to play an influential role in the government functioning.

As per the Census, 2011 the child sex ratio (0-6 years) has shown a decline from 927 females per thousand males in 2001 to 919 females per thousand males in 2011.

As per the census 2011, Arunachal Pradesh has the highest child sex ratio among the Indian states i.e. 972.

Source "

Both the statements are correct.

The Atomic Energy Regulatory Board was constituted on November 15, 1983 by the President of India by exercising the powers conferred by Section 27 of the Atomic Energy Act, 1962 to carry out certain regulatory and safety functions under the Act.

Uranium is a radioactive element. The Atomic Energy Regulatory Board (AERB) has fixed the permissible radiological limit to 60 PPB of uranium concentration for drinking water.

• "We found that there is a clear urban signal of phenotypic change, and also greater phenotypic change in urbanising systems compared to natural or non-urban anthropogenic systems So urbanisation, globally, is clearly affecting things,"
• Phenotypic change refers to change in an organism's observable traits, such as it morphology, physiology, phenology, or behaviour. The changes in plants and animals included alterations in body sizes, shifts in behavioural patterns and adjustments in reproduction.
• They found that the seeds on Crepis sancta, otherwise known as hawksbeard, were larger on specimens that lived in urban areas, when compared with the seeds from the plants growing in rural settings. As the plant's seeds were dispersed by the wind, the researchers suggested that heavier seeds fared better because they would drop on to nearby soil, whereas the lighter seeds would be carried by the wind, resulting in them being deposited on concrete and tarmac, where it was impossible to germinate.

BBC: Urbanisation signal detected in evolution, study shows ; "