Which of the following statements correctly defines Quasars?

The Nobel Prize in Chemistry 2020 has been awarded for which of the following research?

What is ‘Kasturi Cotton’?

Consider the following statements regarding Platform work:

1. Individuals use an online platform to access other organizations or individuals to solve specific problems or to provide specific services.
2. As per Code on Social Security 2020, central government will set up social security fund for platform workers.
Which of the statements given above is/are correct?

Consider the following statements regarding the Ensemble forecasting:

1. It is a forecasting methodology using a single set of conditions.
2. It can be used for optimization of weather forecasting.
Which of the statements give above is/are correct?