The process by which ammonia is converted to nitrites and then to nitrates is called:
Nitrogen fixation
Ammonification
Nitrification
Denitrification
Related Questions
Which of the following are the essential sources for releasing in the atmosphere?
I. Burning of wood
II. Volcanic activity
III. Combustion of organic matter
IV. Fossil fuels
Choose the correct option
I, II and III
II, III and IV
I, III and IV
I, II, III and IV
A student observes droplets of liquid on the tips of plant leaves early in the morning. This process is known as:
Transpiration
Guttation
Photosynthesis
Absorption
Which of the following is NOT a major reservoir for phosphorus in the nutrient cycle?
Atmosphere
Rocks
Sediments
Ocean
Which of the following is NOT a major reservoir of phosphorus in the nutrient cycle?
Atmosphere
Rocks
Soil
Oceans
The reservoir for the gaseous type of biogeochemical cycle exists in
Stratosphere
Atmosphere
Ionosphere
Lithosphere
The reservoir for the sedimentary cycle exists in
Earth crust
Organic sediments
Calcareous sediments
Limestone
The process of 'mineralization' in nutrient cycling refers to:
The uptake of nutrients by plant roots from the soil
The weathering of rocks releasing nutrients into the soil
The conversion of organic compounds into inorganic forms by decomposers
The incorporation of nutrients into plant tissues
Which one of the following is a sedimentary cycle?
Sulphur cycle
Nitrogen cycle
Carbon cycle
Oxygen cycle
Which one of the following is involved in sedimentary cycle?
Carbon
Nitrogen
Hydrogen
Phosphorus
Which of the following is a major component of all organic compounds and cycles through the environment?
Phosphorus
Nitrogen
Carbon
Sulphur
