Permutations Under Different Conditions

Diborane reacts with ammonia under different conditions to give :

Salicylic acid is treated with bromine under two different conditions as shown :

Which of the following can produce longitudinal waves as well as transverse waves under different conditions?

Maximum power of reproduction under ideal conditions is called___

One basic difference between bacteria and archaebacteria has led the latter to survive under extreme conditions. What is that difference ?

General illustration or permutation OF different object, grouping