Questions

The embryo gets nutrition from the mother's blood with the help of a special tissue called

Acid Rain has pH value of

Name the noble gas which is placed in the third period and eighth group of the Modern Periodic table.

Air ___________________ are the substances which contaminate the air.

Gol Gumbaz was built in which century?

_____, a Muslim saint, lived at the place where Fatehpur Sikri was built.

Who studied the relationship between music intervals?

Two smaller circles touch a large circle internally and pass through the center O of the larger circle. If the diameter of the bigger circle is 28 cm, thenwhat is the area of the bigger circle which is not enclosed by the two smaller circles (in sq.cm)?