http://www.vaderstad.com/en/knowhow/soil-basic The building blocks of soil The soil that is cultivated to create a seedbed only consists to half of solid material, while the remainder consists of pores filled with…
Introduction to photosynthesis http://www.eschooltoday.com/photosynthesis/introduction-to-photosynthesis.html Every living creature needs food or energy to survive. Some depend on others for food and energy, whiles others can produce their own food. Plants make…
http://en.wikipedia.org/wiki/Photoperiodism From Wikipedia, the free encyclopedia Photoperiodism is the physiological reaction of organisms to the length of day or night. It occurs in plants and animals. Photoperiodism can also be defined as the developmental…