How has seasonal change made life possible on earth

The sun: provides heat and light needed to support life.

Magnetic field: deflects the solar wind.

Ozone layer: Acts as a barrier against ultraviolet light and other radiation.

Greenhouse gases such as methane and carbon dioxide: retain warmth within the Earth.

Oxygen and carbon dioxide: oxygen is needed for aerobic respiration.

carbon dioxide is needed by photosynthesising organisms.

Liquid water: has many useful properties such as good solubility properties.