This is the one that Fred suggest me to buy...
- 7.2 megapixels (effective)
- 3x optical zoom
- autofocus only
- program and manual exposure
- JPEG file formats
- proprietary Lithium-Ion battery
During the class this morning, we did discuss about the mineral salt content in the soil. I asked them... what should we do if the soil has a small quantity of mineral salt? Then this clever boy told me... put the salt and pour the mineral water....