561: Consider the following:
1. Camphor
2. Chicory
3. Vanilla
Which of the above is/are plant product(s)?
(a) 1 & 2
(b) 1 & 3
(c) 3 only
(d) 1, 2, 3
Explanation:
Camphor is a waxy, white or transparent solid with a strong, aromatic odor. It is found in wood of the camphor laurel (Cinnamomum camphora), a large evergreen tree found in Asia (particularly in Borneo and Taiwan, hence its alternate name). It also occurs in some other related trees in the laurel family, notably Ocotea usambarensis. It can also be synthetically produced from oil of turpentine. It is used for its scent, as an ingredient in cooking (mainly in India), as an embalming fluid, in religious ceremonies and for medicinal purposes. A major source of camphor in Asia is camphor basil.
Common chicory (Cichorium intybus) is a bushy perennial herb with blue, lavender, or occasionally white flowers. It grows as a wild plant on roadsides in its native Europe, and in North America and Australia, where it has become naturalized Vanilla is a flavoring derived from orchids of the genus Vanilla native to Mexico. There are currently three major cultivars of vanilla grown globally, all derived from a species originally found in Mesoamerica, including parts of modern day Mexico.
564: In the context of solving pollution problems, what is/are the advantage/advantages of bioremediation technique?
1. It is a technique for cleaning up pollution by enhancing the same biodegradation process that occurs in nature.
2. Any contaminant with heavy metals such as cadmium and lead can be readily and completely treated by bioremediation using microorganisms.
3. Genetic engineering can be used to create microorganisms specifically designed for bioremediation.
Select the correct answer using the code given below:
(a) 1 only
(b) 2 and 3 only
(c) 1 and 3 only
(d) 1, 2 and 3