Questions

A coffin was what manufacturer does not want to use it, the buyer does not need to use it and the user does not know he is using it.

A forcible escape from a prison is called a breakout. The correct answer is option 3. Perpetuate means to preserve or continue. Hence option 3 is the correct response.

Syngamy, also known as fertilisation occurs between the male and female gametes. Syngamy may occur either externally, outside the body of organisms or internally, inside the body. Syngamy leads to formation of a specialised cell called diploid zygote.

The   first   model   of   atom   was proposed   by   J.   J.   Thomson   in 1898.According  to  this  model,  the positive   charge   of   the   atom   is uniformly   distributed   throughout the  volume  of  the  atom  and  the negatively  charged  electrons  are embedded  in  it  like  seeds  in  a watermelon.    This    model    was picturesquely  called  plum  pudding model of the atom