No
When they are not ripe they are green, but they are red when ripe.
They are. Its the green ones that aren't ripe.
Neither & both. The ones that sink are ripe, the ones that float are either unripened or quite bad. They are easy enough to identify.
Putting an unripe tomato in the sunlight is a bad way to ripen them. The best place to put an unripened tomato is on top of your refrigerator. The warmth is what helps them to ripen. Enjoy your tomatoes!
No, the blue color is a sign that they are ripe. The longer the fruit stays attached to the plant the more nutrients can be infused into the fruit. An exception to this is if the berries after being picked ripen on their own. In general with fruits the ripe versions offer more then the unripened ones.
There are several that could be used: green, unripe, unripened and immature.
Not all tomatoes are red you can grow yellow ones the color shows they are ripe. The ones that are red contain a chemical called licopene.Licopene gives red colour to tomatoes which is carotenoid. It is like beta and alpha carotene which is present in carrots.
According to M. Night Shymalan, Red is a bad colour and yellow is a good colour. -On a more serious note, yellow tomatoes in my opinion are more sweet than red ones and the skin of yellow tomatoes are thicker
Ripe tomatoes
ea is the abbreviation for each, which is the unit of measure in your example. It means use 4 ripe tomatoes.
fruit (when ripe) or bread /starches when cooked (unripened)
It depends on how ripe the tomato is; if it is very firm, it is not ripe yet. Perfectly ripe tomatoes are slightly firm but give a bit when squeezed.