Explanation:

Both statements 1&2 are correct.

• The Council of Scientific &Industrial Research (CSIR), installed and activated India’s biggest Climate Clock at the CSIR Headquarters in New Delhi as a part of the Earth Day Celebrations. 

• The event signifies CSIR’s aim to spread awareness about climate change and to make people energy literate.

• It is a graphic to demonstrate how quickly the planet is approaching 1.5°C of global warming, given current emissions trends. It also shows the amount of CO2 already emitted till date. 

Hence option 3rd is correct.