What are the essentials of drinking water ?

What are the essential basis of modern taxonomic studies?

What are essential amino acids?

Which of the following is not used for disinfection of drinking water?

Which of the following is not used for disinfection of drinking water?

What are the essential and non-essential amino acids?Give two examples of each type.

What are the essential and non-essential amino acids?Give two examples of each type.

Name the steps involved in the purification of drinking water supplied in cities and towns.

Match the upper limit concentrations of the pollutants in drinking water given in column I with pollutants in drinking water given in column I with column II mark the appropriate choice .

Clean water with BOD value and pH range when it is recommended as a drinking water respectively should be

What are essential elements for plants ? Give the criteria of essentiality ? How are minerals classifieds depending upon the amount in which they are needed by the plants ?