Select the number that will replace the question mark

When during March is the global environmental event Earth Hour observed?

The Armed Forces Medical Services (AFMS) recently signed an MoU with which institution for multidisciplinary research? 

Which entity conducted the first joint naval  exercise in the Gulf of Guinea on October 24,  2023? 

Which age group does NEP 2020 target for quality early childhood care and education?

Kerala was formed by merging which three regions? 

Which part of the Indian Constitution is often referred to as the Magna Carta of India?

With reference to the United Nations Climate Ambition Summit (CAS), consider the following statements:

Which portal has been launched to monitor child care institutions across the country?

Consider the statements about Lunar Gateway Station:

1. It is a component of ISRO Chandrayaan-3 program.

Arrange the following events in chronological order in increasing order –

1. Establishment of Muslim League

2. Lucknow Pact