First they don't use oxygen, plants use the CO2 in the air and release oxygen out into the air after the plant used up the CO2
Ans.
The phloem is living plant tissue ,found in vascular plants and made up of parenchyma cells and sieve elements. Phloem performs translocation, which involves transport the soluble organic products of photosynthesis, mainly the sucrose from photosynthetic sites other plant parts where needed.
Thus, the primary function of the phloem in vascular plants is to perform 'translocation.'
There's the cumulus, stratus, the cirrus and the nimbus.
