Statement-I: Once coral bleaching occurs, corals cannot establish pre bleaching  state 

Statement II: The change in the colour of corals  is because of the decay of algae living in  their tissues symbiotically

Which one of the following is correct in respect of the above statements?

1. Red sanders 

2. Sal 

3. Rhizophora 

4. Chir 

How many of the above are deciduous trees?