United Nations Conference on Environment and Development was held in Rio De Janeiro, in June 1992, which was also called Earth Summit and is marked as the watershed in the history of climate change and sustainable development. Choose the correct statement/s in this regard.

1. The Summit was attended by 170 states, thousands of NGOs and many multinational corporations.

2. The 1987 Brundtland Report, ‘Our Common Future’ acted as a precursor to Earth Summit.

3. In ‘Agenda 21’, there was a consensus between developed and developing countries, on combining economic growth with ecological responsibility.