Use of ethylene for ripening of the fruit is a common
practice in different countries but due to high cost
and scarcity in terms of its availability, many
developing countries like use low-cost calcium carbide to ripen fruit
Ethylene has been found not harmful or toxic to humans in the concentrations found in ripening rooms.
It affects the growth, development, ripening, and senescence (aging) of all plants.
Ethylene is the gas. In some countries, calcium carbide is used for ripening fruit artificially. When the chemical comes in contact with moisture, it produces acetylene gas, which is similar in action to the natural ripening agent ethylene.
Ethylene
Ethylene
Usually methane.
Because the pigment color changes and it increases in sugar content.Read more: Why_ripening_of_fruit_is_a_chemical_change
The ripening of fruits is mostly synonymic to desirable changes as the process is very gradual one and the moment that one incurs in getting that ripe fruit is the investment of time that the individual undergoes for achieving the desired result. In general life also one has to be patient in ones approach towards getting the desired result in ones work arena as similar to that in case of fruit ripening. That's why the synonymic is used. Thanks
Aspartame or artificial sweeter
The ones that I have seen and used are not artificial, but actually dried cherries.
Geen chilli is basically a fruit and it is also used as a vegetable.
The liquid from a green coconut.
Olives
GREEN HOUSE
Green-houses are used to store many of different plants from outside, when the conditions are not suitable for them, contolled temperature and artificial lightning are used is Green-houses to help the plants grow.
Stem elongation is promoted by plant hormones called giberellins.