(a) Gas A is carbon dioxide (CO2), which is the main cause of global warming.
(b) Common name of B is water (H2O).
(c) C is the sunlight, an environmental factor that helps in photosynthesis process.
(d) Material D is chlorophyll. It is a green material found in leaves of plants.
(e) Organic compound E is glucose (C6H12O6).
(f) Gas F is oxygen (O2) gas, which is necessary for breathing. It is released naturally during photosynthesis.