Phosphorus Cycle -Multiple Choice Questions Quiz

Interactive MCQs on “Phosphorus Cycle”:

Solve the following 10 questions. Only one option is correct. Click on the “Submit” button when done. Click on the “embed” button to use this quiz on your website. Click on “WhatsApp” to share this quiz.

Question 1:What is the phosphorus cycle?

(A) The movement of nitrogen in ecosystems
(B) The movement of carbon in ecosystems
(C) The movement of phosphorus in ecosystems
(D) The movement of oxygen in ecosystems

Question 2:Which of the following is the main source of phosphorus in the ecosystem?

(A) Air
(B) Rocks and minerals
(C) Water
(D) Animals

Question 3: What is phosphatization in the phosphorus cycle?

(A) Absorption by plants
(B) Release from rocks
(C) Decomposition by bacteria
(D) Release from rocks as phosphate

Question 4:How do plants obtain phosphorus?

(A) From carbon dioxide
(B) Through photosynthesis
(C) As phosphate ions from the soil
(D) From nitrogen fixation

Question 5:What happens to phosphorus when plants or animals die?

(A) It enters the atmosphere
(B) It is absorbed by fungi
(C) It is released into the soil and water
(D) It is stored in the plants

Question 6:What role do bacteria play in the phosphorus cycle?

(A) Convert nitrogen to ammonia
(B) Release oxygen into the atmosphere
(C) Mineralize organic phosphorus to inorganic forms
(D) Absorb phosphorus for energy

Question 7:What is eutrophication, and how is it related to phosphorus?

(A) Water pollution due to heavy metals
(B) Excessive growth of algae due to excess phosphorus
(C) Reduced soil fertility due to phosphorus
(D) Decreased crop yields

Question 8:What is the role of animals in the phosphorus cycle?

(A) Absorb phosphorus from the soil
(B) Release phosphorus during decomposition
(C) Consume plants and excrete phosphorus
(D) Convert phosphate into atmospheric phosphorus

Question 9:What is phosphate mining, and why is it significant to the phosphorus cycle?

(A) A process that adds phosphorus back into the cycle
(B) A way to prevent eutrophication
(C) The process of extracting phosphate rocks for fertilizers
(D) A method of increasing soil acidity

Question 10:Why is the phosphorus cycle considered different from other biogeochemical cycles?

(A) It involves more gases than solids
(B) It is a fast cycle
(C) It has no gaseous phase
(D) It includes oxygen as a major component