In the winter in a snowy climate, where does oxygen come from?

Question

In the summer, we have lots of trees and grass, but in the winter, with everything frozen over and only a few pine trees, where does our new oxygen come from?

Answer 1

it is blown from other places across the sea that are experiencing summer and have lots of trees.

Answer 2

Fortunately we live in a large world and the oxygen contributed by trees in other parts of the world where it is summer contributes to your air.  

Oxygen is also released from the oceans etc due to photosynthesis by  pytoplankton, and this continues as long as the water is not frozen.

In addition the weathering of rocks releases oxygen into the atmosphere due to thye break down of minerals such as iron ore into pyrities (spelling?)

And oxygen is also  produced by the ultraviolet light in sunshine breaking down the hydrogen and oxygen in water (photolysis).

Hope this helps.

Answer 3

The trees vanish only in your backyard and not in the tropics,or anywhere much for that matter. The trees all around the world keep contributing the oxygen and as oxygen cannot escape earth's gravitational pull., it gets equally distributed all over the world.

Answer 4

All green living plants recycle our air . NASA planed for deep space that they would use algae in large plastic tubes exposed to light to recycle the air.

Answer 5

Right on David M.

Too many people think all oxygen comes from trees. It just isn't so.