Secondary sewage treatment is mainly a - Vidyadip

MCQ

Secondary sewage treatment is mainly a

A
physical process
B
mechanical process
C
chemical process
✓
biological process.

✓

Answer

Correct option: D.

biological process.

d
(d)

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "M.C.Q (1 Marks)" from STD 12 - 8. microbes in human welfare→STD 12 - 8. microbes in human welfare — all question types→Biology STD 12 Science question papers→CBSE Board STD 12 Science question papers→CBSE Board question paper generator→

Similar questions

The usual source of restriction endonucleases used in gene cloning is from:

Apiculture is done to obtain the following substances. $\text{I}.$ Bees wax $\text{II}.$ Honey $\text{III}.$ Pear $\text{IV}.$ Gold:

Which of the following shows the sex chromosomes in the body cells and in the sex cells in a female?

Competition occurs when

$DNA$-dependent $RNA$ polymerase catalyses transcription on one strand of the $DNA$ which is called the

Some commercially important products and their source organisms are listed below. Choose the correct matching option:

List-A Bioactive Products	List-B Microorganisms(Source Organisms)
(A) Cyclosporine-A	(i) Streptococcus
(B) Statin	(ii) Trichoderma polysporum
(C) Streptokinase	(iii) Penicillium notatum
(D) Penicillin	(iv) Monascus purpureus

Following characters are most suitable for....

$(i)$ Due to alteration of $DNA$ sequences genotype is change.

$(ii)$ Changes occur in phenotype.

$(iii)$ Variation create in $DNA$

Olins and Olins $(1974)$ discovered which part of chromatin?

In breast feeding women, which of the following can be regarded as the best hormonal contraception method?

Determination of sex of a child depends upon