Question

Which group is not related to Petro plantation?
(a) Euphorbiaceae
(b) Asclepiadaceae
(c) Apocynaceae
(d) Leguminosae

Answer 1

Hint: The family is also called a pea or bean family. It is the third biggest family. They contain plants with root nodules and the majority of the plants are edible. They show a symbiotic association with microorganisms.

Complete answer:
Some species of certain families produce hydrocarbons, which have high molecular weight and are considered to be a good substitute for petroleum. Such plants having a large amount of latex and log chain hydrocarbons are called Petro plants. And the process is called Petro plantation.
The important petrol plants belong to Euphorbiaceae, Apocynaceae, Asclepiadaceae, and Urticaceae. The family which does not have petro plants is Leguminosae.
These types of plants were first cultivated by Italians in Ethiopia. The actual credit of identifying the Petro plants goes to Melvin Calvin.
The oil crisis during world war II led the French and Italians to switch over Petro plants for the production of petroleum. The thick milky latex of Euphorbia abyssinica was used as a substitute for gasoline refineries.
Certain species of tree-like Copaifera langsdorffii are rich in the soil; a single tree can give about 20 to 30 liters of oil.
So, the correct answer is,’Leguminosae’.

Note: In India, a substitute for diesel is used which is the jatropha oil which can be efficient and environmentally friendly.
In the United States, a blend made up of sunflower oil and diesel is called sun oil, also a blend of coconut oil with diesel is used and is called cocodisel.