Absorb vs. Adsorb

Absorb means to suck up or drink in (a liquid, gas or other substances):

- Plants absorb carbon dioxide from the air and moisture from the soil...
- The timber expands as it absorbs moisture from the atmosphere.

Adsorb indicates that a solid holds molecules of a gas or liquid or solute as a thin film or condensed layer on the outside surface or on internal surfaces within the material:

- Charcoal will not adsorb nitrates .
- The dye is adsorbed on to the fiber.

Ingenious vs. Ingenuous

Ingenious and Ingenuous are distinct from each other and are not synonyms.

Ingenious means characterized by cleverness or cleverly inventive :
contriving new explanations or methods, an Ingenious device,Ingenious designers.

Ingenuous means candid or innocent:

An ingenuous and sincere statement. A thug with ingenuous eyes of a choirboy.