Ganga has recently been declared the national river. Discuss the implication with respect to pollution of this river.

How can we control the pollution of river ganga?

A person in your colony has recently been diagnosed with AIDS. People/residents in the colony want him to leave colony for fear of spread of AIDS. Write your views on the situations, giving reasons.

A person in your colony has recently been diagnosed with AIDS. People/residents in the colony want him to leave colony for fear of spread of AIDS. List the possible preventive measures that you would suggest.

A person in your colony has recently been diagnosed with AIDS. People/residents in the colony want him to leave colony for fear of spread of AIDS. Write the symptoms and causative agent of AIDS.

Sewage Treatment Plants (STPs) are those plants where sewage water is treated before its discharge into the rivers. Discuss the following: To which types of treatment, the sewage water is subjected to? Enlist the significance of each treatment type.

Sewage Treatment Plants (STPs) are those plants where sewage water is treated before its discharge into the rivers. Discuss the following: Sewage treatment provides not only usable water but also generates fuel. Justify the statement.

Sewage Treatment Plants (STPs) are those plants where sewage water is treated before its discharge into the rivers. Discuss the following: Why the secondary treatment is also called biological treatment?

Give in detail the journey of ganga and discuss how is it getting polluted?