Statement 1, 3 and 4 are correct while statement 2 is correct.
The Constitution lays down the following qualifications for a person to be chosen a member of the state legislature:
(a) He must be a citizen of India.
(b) He must make and subscribe to an oath or affirmation before the person authorised by the Election Commission for this purpose. In his oath or affirmation, he swears (i) To bear true faith and allegiance to the Constitution of India (ii) To uphold the sovereignty and integrity of India.
(c) He must be not less than 30 years of age in the case of the legislative council and not less than 25 years of age in the case of the legislative assembly.
(d) He must possess other qualifications prescribed by Parliament.

Statement 1 and 3 are correct while statement 2 is incorrect.
When a bill is sent to the governor after it is passed by state legislature, he can:
(a) Give his assent to the bill, or
(b) Withhold his assent to the bill, or
(c) Return the bill (if it is not a money bill) for reconsideration of the state legislature. However, if the bill is passed again by the state legislature with or without amendments, the governor has to give his assent to the bill, or

(d) Reserve the bill for the consideration of the president. In one case such reservation is obligatory, that is, where the bill passed by the state legislature endangers the position of the state high court.

In addition, the governor can also reserve the bill if it is of the following nature:
(i) Ultra-vires, that is, against the provisions of the Constitution.
(ii) Opposed to the Directive Principles of State Policy. (iii) Against the larger interest of the country. (iv) Of grave national importance. (v) Dealing with compulsory acquisition of property under Article 31A of the Constitution.

Statement 1 is incorrect while statement 2 is correct.
As provided by the Constitution, the Speaker of the last Lok Sabha vacates his office immediately before the first meeting of the newly elected Lok Sabha. Therefore, the President appoints a member of the Lok Sabha as the Speaker Pro Tem.
Usually, the seniormost member is selected for this. The Speaker Pro Tem has all the powers of the Speaker. Hhe presides over the first sitting of the newly elected Lok Sabha. Her main duty is to administer oath to the new members. He also enables the House to elect the new Speaker. When the new Speaker is elected by the House, the office of the Speaker Pro Tem ceases to exist. Hence, this office is a temporary office, existing for a few days

Competitiveness and Resilience Partnership, or CoRe was announced between US and Japan to support the funding of new-age technologies.
The funding will be used for the deployment of secure 5G networks to build digital infrastructure in developing countries.
Given the Chinese ambitions to dominate the development of new-age technologies such as 5G and quantum computing the announcement of CoRe is significant as it act as a counterbalance to Chinese tech ambitions.

The Indian Navy has launched Operation Samudra Setu-II. The Indian Navy launched this operation with the aim to bring oxygen-filled cryogenic containers to India from abroad.
This is because the country is facing a severe shortage of medical oxygen in the wake of a massive spike in new Covid-19 cases. As part of the mission, Seven Indian Naval ships, namely Kolkata, Kochi, Talwar, Tabar, Trikand, Jalashwa, and Airavat, are participating. These ships will carry shipments of liquid medical oxygen-filled cryogenic containers and associated medical equipment from various countries to India.