If 2a - 3b = 8 and ab = 7, then find the value of 2a +

A method of asexual propagation in which a stem is made to produce roots while still attached to the parent plant is called 

Maximum, minimum and optimum temperatures are collectively termed as

The date after which a food product is not advisable to be marketed as its quality may have diminished, but may still be safe to consume is its:

Bacteria responsible for oxidizing NO2-, NO3-in soils is __ ?

viroid consists of

How many pickings are usually done for cotton in North India with 15 days intervals?

The fourth step in a HACCP plan is to:

The ratio of weight of unit volume of dry soil including pore spaces to weight of an equal volume of water is:

Akoichi disease in rice is due to toxicity of

Soil physical property which cannot be changed of altered is: