Which of the following statements are correct?
A. Agenda 21 was adopted in the 1992 Earth Summit held in Rio de Janeiro, Brazil.
B. Montreal protocol was also adopted in the 1992 Earth Summit at Rio de Janeiro, Brazil.
C. The main aim of Montreal protocol was to reduce carbon-di-oxide emissions by member nations.
D. The Commission on Sustainable Development(CSD) was created in 1992 for effective follow-up of conference held in Rio de Janeiro, Brazil.
Choose the correct answer from the options given below:
1
A and B only
2
A and C only
3
A and D only
4
C and D only