Nutrient Cycling In Nature - SS2 Biology Past Questions and Answers - page 1

Which cycle involves the movement of carbon between living organisms, the atmosphere, and the Earth's crust?

Which cycle involves the exchange of oxygen between living organisms and the atmosphere?

Which cycle involves the conversion of nitrogen gas into usable forms by bacteria?

Which cycle involves the movement of water between the Earth's surface, the atmosphere, and back?

Which balance is essential for maintaining the proper concentration of carbon dioxide and oxygen in the atmosphere?

Which process involves the breakdown of dead organic matter into simpler substances?

Which element is the primary component of organic molecules in living organisms?

Which process releases carbon dioxide into the atmosphere through the respiration of living organisms?

Which process in the carbon cycle removes carbon dioxide from the atmosphere and converts it into organic compounds?

Which process involves the conversion of nitrogen compounds into nitrogen gas and its release back into the atmosphere?