............................... is a curve which shows various combinations of inputs that cost the same total amount .
The time required for the runoff water to flow from the most remote point of the watershed area to the outlet is called
Which country leads in total area of cotton?
The element used in the manufacture of safety matches is —
Which of the following method is most effective in conferring disease resistance among distantly related species?
What is the site of protein synthesis in the cell
Plants absorb nickel in the form of-
Headquarter of National Horticulture board is located at
Total number of agro - climatic zones of Tamil Nadu is
What type of vegetables are commonly grown hydroponically under controlled environments?