Statement 1 is correct. An urban heat island is an urban area that is significantly warmer than its surrounding rural areas due to human activities.
Statement 2 is incorrect. The temperature difference usually is larger at night than during the day, and is most apparent when winds are weak. Nighttime temperatures in UHIs remain high. This is because buildings, sidewalks, and parking lots block heat coming from the ground from rising into the cold night sky. Because the heat is trapped on lower levels, the temperature is warmer.
Statement 3 is correct. People also contributes into making an urban area a heat island as people burn off energy during their day to day activities and this energy get released in the form of heat.

Hambantota is the main town in Hambantota District, Southern Province, Sri Lanka. This underdeveloped area was hit hard by the 2004 Indian Ocean tsunami and is underwent a number of major development projects including the construction of a new sea port and international airport.

Option a is correct. There are many chemicals and compounds found on Earth that help in balancing and stabilizing the temperature. These are called green house gases.

Option b is correct. Under the Paris accord, each country must submit its own plan to reduce emissions of greenhouse gases and address the impact of climate change.

Option c is correct. Many greenhouse gases occur naturally in the atmosphere, such as carbon dioxide, methane, water vapor, and nitrous oxide, while others are synthetic. Those that are man-made include the chlorofluorocarbons (CFCs), hydrofluorocarbons (HFCs) and Perfluorocarbons (PFCs), as well as sulfur hexafluoride (SF6).

Option d is incorrect. Water vapour is a greenhouse gas so more water vapour in atmosphere will lead to more greenhouse effect.

Statement 1 is incorrect. The Central Pollution Control Board (CPCB) of India is a statutory organisation under the Ministry of Environment, Forest and Climate Change (MoEF&CC) It was established in 1974 under the Water (Prevention and Control of Pollution) Act, 1974.

Statement 2 is correct. Principal Functions of the CPCB, as spelt out in the Water (Prevention and Control of Pollution) Act, 1974, and the Air (Prevention and Control of Pollution) Act, 1981,

• (i) to promote cleanliness of streams and wells in different areas of the States by prevention, control and abatement of water pollution, and

• (ii) to improve the quality of air and to prevent, control or abate air pollution in the country.

Statement 3 is incorrect. There are state level pollution boards available to fight pollution.

• Statement 1 is incorrect. A VVPAT allows voters the possibility to verify that their votes are cast as intended and can serve as an additional barrier to changing or destroying votes. The slip automatically get destructed after 7 second of it’s appearance.
• Statement 2 is incorrect. Goa was the first state to use VVPAT in it’s elections.

Thus both statements are incorrect

Parliament has the power to establish a common High Court for two or more States (Article 231). For Instance, Punjab and Haryana have a common High Court. Similarly there is one High Court for Assam, Nagaland, Meghalaya, Manipur and Tripura. Thus, Statement 1 is incorrect.

Each High Court consists of a Chief Justice and such other judges as the President may. From time to time, appoint. Unlike the Supreme Court there is no fixed minimum number of judges for the High Courts. It varies from Court to Court and from State to State. Thus, statement 2 is correct.

The High Court is the highest judicial body in a State. Article 214 of the Constitution provides that there shall be a High Court for each State.

Often there may be a common High Court for two or more than two States. There are 24 High Courts in the country. Three High Courts have jurisdiction over more than one State. Among the Union Territories, Delhi alone has a high court of its own.

While appointing additional  judges of the High Court, the President consults the Chief Justice of the Supreme Court, the Governor of the State and the Chief Justice of the concerned High Court. The additional judges are often appointed in order to dispose of the arrears cases. Thus, statement 1 is incorrect.

No person appointed as an additional or acting Judge of a High Court shall hold office after attaining the age of sixty-two years. Thus, statement 2 is incorrect.

Appointment of Additional Judges of High Court:

The appointment of additional judges takes place under these situations:

• If by reason of any temporary increase in the business of High Court or by reason of arrears of work therein, it appears to the President that the number of the Judges of that Court should be for the time being increased, the President may appoint duly qualified persons to be additional Judges of the Court for such period not exceeding two years as he may specific.
• When any Judge of a High Court other than the Chief Justice is by reason of absence or for any other reason unable to perform the duties of his office or is appointed to act temporarily as Chief Justice, the President may appoint a duly qualified person to act as a Judge of that Court until the permanent Judge has resumed his duties.