The alum used for purifying water is

The simplest and most primitive embryophytes are ......

$A$ stunt man jumps his car over a crater as shown (neglect air resistance).

Consider the following two statements $A$ and $B$ and identify the correct choice in the given answers:
$A$. Paramagnetism is explained by domain theory.
$B$. Susceptibility of a diamagnetic substance is independent of temperature.

The product is:

The pair of compounds,which cannot exist together in a solution is