Explanation

Water ? is essential for life.

پانی زندگی کے لیئے ضروری ہے۔

Explanation

Usually Article the is used before unique things like Sun, Earth, Moon etc.

Explanation

Cattle from all over the world give us milk.

It means this a universal Truth which doesn't take article.

Explanation

I saw an elephant yesterday.

Article 'An' is used before elephant.

Explanation

Usually Article the is used before unique things like Sun, Earth, Moon etc.

Explanation

 Database management is not a function of the Operating System.

An Operating System is a program on which application programs are executed. 

Explanation

Explanation

Usually Article the is used before unique things like Sun, Earth, Moon etc.

Explanation

I was born in Pakistan ??.

میں پاکستان میں پیدا ہوا۔

Note: Usually no Article is used before the name of countries.

Explanation