Write a short note on foxtail millet.

Give a botanical name of green gram and write its  origin andarea of cultivation and uses.

Mention the ways in which mangoes are used in Indian culinary.

Write a note on origin and area of cultivation of cotton.

What is vulcanization? Who invented it?

Write about the Henna with its origin and areas of cultivation and uses.

What are organic pesticides?

The following are the binomials of economically useful plants. Mention their respective families.
(a) Borassus flabellifer
(b) Mangifera indica
(c) Saccharum officinarum
(d) Curcuma longa
(e) Capsicum annum
(f) Tamarindus indica

Name the plant source from which the following products are obtained.
(a) Maida
(b) Rubber
(c) Morphine
(d) Coffee

Mention the plant species or their products which are popularly known as
(a) Queen of species
(b) Black Gold of India and
(c) King of bitters.

Complete the statements.
(a) Alphonsa is a variety of_________
(b) Cayenne pepper is a variety of __________

Siddha medicine is an age old practice in our nation. According to this medicinal sysem, what is the major cause for all sort of illness in humans?

Write the uses of THC.

What is Aloin? Write its significance.

Explain the origin of paper.