Combination and Decomposition reaction| Exothermic and endothermic reaction

In endothermic reactions,

For an exothermic reaction

What is a decomposition reaction ?

Which is correct for an endothermic reaction ?

Give the example of Endothermic reaction

Give an example of an endothermic reaction.

Differentiate between combination and decomposition reaction with examples.

Differenctiate between,- a. Direct combination reaction & a decomposition reaction b. Displacement reaction & a neutralization reaction.

The following is not an endothermic reactions:

The following is not an endothermic reactions: