Which of the following is not an e-mail service

According to USDA classification of salt affected soils; a soil having EC >4 mmho/cm; ESP >15; pH>8.5 will be called as 

The law by which company cannot make its product illegally similar to competitor’s product?

The gradual increase in the concentration of nutrients in an aging  aquatic ecosystem such  as  a lake is called ____

Which of the following crop is used for flax and oil both?

What is the term for the fruit of sunflower from a botanical perspective?

The _______with respect to a given outlet point; represents a geophysical area whose surface runoff passes out through the given outlet point only.

Which of the following is major greenhouse gas associated with livestock agriculture

Diamond Back Moth (DBM) is a specific insect of which crop? 

Tristeza virus is associated with .....