Consider the following pairs regarding astronomical phenomena and their causes
Phenomenon           Cause
1. Einstein Ring         Gravitational lensing by a massive foreground object
2. Redshift                 Expansion of the universe
3. Aurora Borealis     Cosmic microwave background radiation
Which of the pairs given above are correctly matched?

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Which of the following factors has been identified as a primary contributor to the recent decline in India's stock markets?

As per NEP 2020, which of the following statements is correct?
1. The medium of instruction until at least Grade 5 should be in the home language/mother tongue/local language.
2. The policy aims to achieve 100% Gross Enrollment Ratio (GER) in school education by 2030.
3. The policy recommends the replacement of the 10+2 schooling system with the 5+3+3+4 structure.