It's a myth that plant give oxygen at night because every living organism respire 24 hours means oxygen intake and co2 outside. .Now we discuss about peepal tree 🌲.. 👇👇👇

Peepal plant cannot release oxygen at night. As peepal is a C4 plant it is true that it can perform photosynthetic process without light combining Rubisco.only light dependent photosynthesis can produce oxygen.

This misbelief can be understood as plants take co2 at night ,,due to this o2 conc increases in its vicinity,..moreover Peepal tree is a hemi-epiphyte in its native habitat i.e. the seeds germinate and grow as an epiphyte on other trees and then when the host-tree dies, they establish on the soil. It has been suggested that when they live as epiphyte, they use CAM pathway to produce carbohydrates and when they live on soil, they switch to C3 type, Peepal tree would either release or not release CO{-2} in the night depending on if they are epiphytic or not. For other CAM plants, it would depend on if they have adequate water or not, or other environmental factors.