In the phosphorus cycle, weathering makes phosphate available first to:

Related Mcqs:

1. The air pollution caused by phosphate fertilizer factories is due to:The air pollution caused by phosphate fertilizer factories is due to:

   A. Phosphene B. SiF4 C. Dust D. Halogens...

2. The biological weathering occurs due to the action of:

   A. Acids B. Alkalies C. Oxygen D. Carbon dioxide...

3. The processes involved in the chemical weathering are:

   A. Carbonation and oxidation B. Hydrolysis and chelation C. Hydrolysis and reduction D. All of these...

4. The biological weathering commonly brought about by:

   A. Algae B. Bacteria C. Fungi D. Lichens...

5. Phosphate pollution is caused by:

   A. Phosphate rock only B. Agricultural fertilizers only C. Sewage and phosphate rock D. Sewage and agricultural fertilizers...

6. A plant, being eaten by a herbivore which in turn is eaten by a carnivore, makes a:

   A. Food chain B. Web of food C. Biomass D. Interdependence...

7. Which of the following is logical sequence of carbon cycle:

   A. Photosynthesis-consumer-decomposer B. Decomposer-consumer-photosynthesis C. Photosynthesis-decomposer-consumer D. Consumer-photosynthesis-decomposer...

8. Which ecological cycle is directly driven by sunlight?

   A. Hydrologic B. Phosphorus C. Nitrogen D. Sulphur...

9. Hydrological cycle is under the control of:

   A. Grasslands B. Forests C. Planktons D. Epiphytes...

10. Which one of the following pairs is a sedimentary type of biogeochemical cycle?

    A. Oxygen and nitrogen B. Phosphorus and Sulphur C. Phosphorus and CO2 D. Phosphorus and nitrogen...