With reference to the low-C bricks, consider the following statements:

1. Researchers of the Indian Institute of Science have recently developed a technology to produce energy-efficient walling materials using construction and demolition waste and alkali-activated binders.

2. They do not require high-temperature firing and avoid the use of high-energy material such as Portland cement.

Which of the statements given above is/are correct?

With reference to the International Olympic Committee (IOC), consider the following statements:

1. The International Olympic Committee (IOC) has suspended North Korea until the end of 2022 after it failed to send a team to the Tokyo Games.

2. At Rio Olympics 2016, North Korea had won two Golds, three Silvers and two Bronzes.

Which of the statements given above is/are correct?

With reference to the Delhi-Mumbai Expressway, consider the following statements:

1. The project was kickstarted in 2014.

2. The expressway is the first in Asia and only the second in the world to feature animal overpasses to facilitate unrestricted movement of wildlife.

Which of the statements given above is/are correct?

With reference to the Adaptive Refresh Rate, consider the following statements:

1. Refresh rate means how many times the image on a screen can be updated or “refreshed” every second – much faster than your eye can detect.

2. A static website will be played at a 10Hz refresh rate and a game at a 120Hz refresh rate.

Which of the statements given above is/are correct?

Which of the following nations own and operate Nuclear-powered submarines currently?

1. Germany

2. India

3. U.S.A

Select the correct answer using the code given below: