11. The author introduces the discussion of the paradox concerning atomic structures in order to
A. Show why it was necessary to develop quantum mechanics
B. Compare the structure of an atom with the structure of star
7

What does water came out from a rock mean in this poem and why is it compared to the radio waltz? time was away and somewhere else. the waiter did not come, the clock forgot them and the radio waltz came out like water from a rock: time was away and somewhere else.

Why are reading and writing necessary in today’s world?

What do you call a person who is mean in school?