To maintain the federal equilibrium by protecting the interests of the states against the undue interference of the Centre. So, statement 1 is correct.

It enables a second and reflective expression of representative opinion.  It acts as a deliberative body holding high-quality debates on important issues. So, statement 2 is correct.

It helps to initiate proposals for public policy. So, statement 3 is correct. 

Both the Houses check one another avoiding parliamentary tyranny. It can ensure that the majoritarian of the Lower House does not undermine rule of law, Indian Constitution and public institutions. It acts as a knowledge domain due to the presence of experts. It represents the interests of the States and promotes Federalism. It can be the voice of sanity, of the excluded, and of citizen rights.

The botanical name of papaya is ‘Carica papaya’. It is rich in carotene, which is a precursor of vitamin A. The papain enzyme presented in papaya is helpful in digestion. The yellow colour of papaya is due to present of caricaxznthin.

Mahi Bajaj Sagar Project is the combined project of Rajasthan and Gujarat.

Earlier, Dams were built to hold rivers and rainwater that could be used later to irrigate agricultural fields. Today, dams are built not just for irrigation but for:

• electricity generation,
• water supply for domestic and industrial uses,
• flood control,
• recreation,
• inland navigation,
• fish breeding etc.

Thus, dams are now referred to as multipurpose projects. Jawahar Lal Nehru named these 'River Valley Projects' as 'Temples of Modern India' because of their importance.

The correct match:

Only pairs 2 and 3 are correct.

The tradition of Kathakali, a rich and thriving classical dance of the southwestern state of Kerala, is here. Kathakali means a story drama or a dance drama. Katha means story, here actors portray characters drawn from the Ramayana and Mahabharata epics and Puranas.

US, Russia agree to extend the New START’ nuclear arms treaty.

The extension of the landmark arms control treaty will continue to limit the number of nuclear missiles and warheads each country can deploy.

Over 10 individuals belonging to the Great Andamanese tribe, a notified Particularly Vulnerable Tribal Group (PVTG), with a population of just 56 individuals tested positive for COVID.

The island administration has since ramped up testing among the Onge, Little Andamanese and the Great Andamanese and the Jarawas.

In 1973, the Dhebar Commission created Primitive Tribal Groups (PTGs) as a separate category, who are less developed among the tribal groups. So, statement 1 is not correct.

Among the 75 listed PVTG the highest number are found in Odisha (13), followed by Andhra Pradesh (12). So, statement 2 is correct.

Prime Minister Narendra Modi announced the Pradhan Mantri Schools For Rising India (PM-SHRI) Yojana.

Under the scheme, 14,500 schools from across the country will be upgraded as PM-SHRI schools. They will have a modern and transformational method of imparting education. The PM SHRI Schools will showcase all components of the National Education Policy 2020.

About Wildlife Sanctuary:

• These are naturally occurring areas where endangered species are protected from poaching, hunting and predation.
• No animal is bred for commercial exploitation.
• The species is protected from any disturbance.
• Killing or capturing of animals inside the sanctuaries is not permitted.
• The state government can declare a wildlife sanctuary with a notification. The boundaries of which can be changed by a resolution of the State Legislature.
• Limited human activities are permitted, provided they do not interfere with the animal's well-being.
• Only very limited human activity is permitted.
• They are open to the general public. But people cannot move freely. Restrictions are there as to who can enter and/or reside within the boundaries of the sanctuary. Only public servants, persons holding immovable property etc. allowed. People using the highways passing through the sanctuaries are also allowed inside.
• Generally the boundaries of sanctuaries are not fixed and defined.
• Biologists and researchers are allowed to study the area and its inhabitants.
• The Chief Wildlife Warden is empowered to permit persons to enter or reside in the sanctuary for the study of wildlife for the purpose of scientific research for photography and tourism.
• There is a provision to upgrade the sanctuaries to the status of a 'National Park'.
• Examples of sanctuaries include the Indian Wild Ass Sanctuary (Rann of Kutch, Gujarat); Vedanthangal Bird Sanctuary in Tamil Nadu (the oldest bird sanctuary in India); Dandeli Wildlife Sanctuary (Karnataka).

Rourkela Steel Plant located near the Paradip port.

Rourkela Steel Plant is located in Rourkela, Odisha. It is closer to Paradip port when compared with other ports. As iron is heavy and weighty, it is exported from nearby Pradip port, Odisha.