Phosphate containing fertilizers cause water pollution. Addition of such compounds in water bodies causes __________.
(i) Enhanced growth of algae.
(ii) Decrease in amount of dissolved oxygen in water.
(iii) Deposition of calcium phosphate.
(iv) Increase in fish population.
Phosphate containing fertilizers cause water pollution. Addition of such compounds in water bodies causes __________.
(i) Enhanced growth of algae.
(ii) Decrease in amount of dissolved oxygen in water.
(iii) Deposition of calcium phosphate.
(iv) Increase in fish population.
-
1 Answer
-
This is a Multiple choice Questions as classified in NCERT Exemplar
Options (i) and (ii) are correct since fertilizers contain phosphates as additives. The addition of phosphates in water enhances the growth of the algae. Such profuse growth of algae covers the water surface and reduces the oxygen concentration in water.
Similar Questions for you
–I effect ∝ Acidic strength
+I effect ∝ Basic strength
* Most stable anion due to maximum –I effect.
* Most acidic
with increase in separation of screen from slits plane, fringe width increases.
Excessive nitrate in drinking water causes methemoglobinemia
Excessive nitrate in drinking water causes methemoglobinemia
Release of toxic/undesirable materials in the environment.
Taking an Exam? Selecting a College?
Get authentic answers from experts, students and alumni that you won't find anywhere else
Sign Up on ShikshaOn Shiksha, get access to
- 65k Colleges
- 1.2k Exams
- 687k Reviews
- 1800k Answers