Photosynthesis – Notes

Natural Resources – Biogeochemical Cycles

 The continual cycle of water between the land, the ocean and the atmosphere is called the water cycle.

The interaction of biotic and a biotic component between the biological and geological world is called Biogeochemical Cycle.

In the carbon cycle, green plants use carbon dioxide from the atmosphere for photosynthesis and finally release it during respiration.

The sequence in which nitrogen in the atmosphere is passed into soil and life- forms, and then released back into the atmosphere, is called the nitrogen cycle.

The Greenhouse effect keeps the Earth warm to sustain life. The ozone layer blocks the harmful ultraviolet rays from reaching the Earth.

Life Process – Photosynthesis

The process that helps in carrying out metabolic functions of living organisms is called life processes.

The process of obtaining energy from food is called nutrition autotrophic nutrition.