Question
Given below are a few impurities in urban waste water. Select two colloidal impurities: ammonia, faecal matter, silt, bacteria, calcium.
✓
Answer
Faecal matter and bacteria.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
Name the city in our country where the entire public road transport runs on CNG.
Define primary production.
How does Penicillium reproduce asexually?
Define BOD.
List two factors that determine the vegetation and soil type of an ecosystem.
State the type of interaction that exists between ticks and dogs.
Mention the carbon positions to which the nitrogenous base and the phosphate molecule are respectively linked in the nucleotide given below:
What type of creature was cromagnon on the basis of consuming human food?
A garden pea plant produced axial violet flowers. Another of the same species produced terminal violet flowers. Identify the dominant traits.
Coelacanth that was caught in 1938 in South Africa, was very significant in the evolutionary history of vertebrates. Why?