Use of "again and again | इंग्लिश बोलना सीखे

We have appealed to him again and again, there is no use flogging a dead horse now.

Which is used again and again in the biosphere, matter or energy ?

A die is thrown again and again until three sixes are obtained.Find the probability of obtaining the third six in the sixth throw of the die.

A die is thrown again and again until three sixes are obtained.Find the probability of obtaining the third six in the sixth thrown of the die.

A die is thrown again and again until three sixes are obtained. Find the probability of obtaining the third six in the sixth throw of the die.

The cellular layer that disintegrates and regenerates again and again in human skin is: