The oxygen plants produce doesn't directly come from CO₂ but from ... Photosynthesis is divided into two main stages: the light-dependent reactions and the Calvin cycle (light-independent reactions).

Rivers, streams, lakes, and reservoirs aren't just scenic parts of our landscape -- they're also vital engines for life on Earth. These inland waters 'breathe' oxygen, just like we do. But a new study ...

Plants are a very important part of our environment because they provide us with oxygen to breathe and food ... The clip traces the life cycle of a plant, from its starting point as a seed or ...