In which of the following cell organelles do both photo-chemical and thermo-chemical reactions occur?

Is it correct to say that photosynthesis occurs only in the leaves of a plant? Besides leaves,what are the other parts that may be capable of carrying out photosynthesis? Justify.

Select the incorrect statement $:$

During photosynthesis,which of the following processes occurs?

According to one estimate,how many $kg$ of carbon is fixed in the biosphere through photosynthesis annually?

Consider the following statements.
$I.$ The portion of the spectrum between $300-500 \;nm$ is also referred to as Photosynthetically Active Radiation $(PAR)$.
$II.$ Magnesium,calcium and chloride ions play prominent roles in the photolysis of water.
$III.$ In cyclic photophosphorylation,oxygen is not released (as there is no photolysis of water) and $NADPH$ is also not produced.