Biology 2 material cycles

Question 1

What is the water cycle

Answer 1

Sun evaporates water from earth surface to water vapour , start to condense in clouds , then fall and precipitate

Question 2

What is the carbon cycle

Answer 2

Photosynthesis plants take in carbon dioxide from atmosphere covert to glucose this can then be passed as respiration or to plants to respire

Question 3

What is the nitrogen cycle

Answer 3

Nitrogen fail to the earth through precipitation, onc in soil finds its way to bacteria at the roots of plants , nitrogen then forms with hydrogen to make ammonia, nitrificatiom takes place , form of nitrite to nitrate plants can then absorb this through assimilation the excess nitrate goes through dentrifyinb bacteria