निम्नलिखित वाक्य को दिए गए विकल्पों में से सही विकल्प का चयन कीजिये  

पिताजी को लिखा जाने वाला पत्र_________कहलाता है। 

Range is the measure of difference between

Which state is the highest producer of soyabean?

How many kilograms does one bale of cotton equal?

‘Khaira disease’ (also known as iron rust) of rice is caused due to:

Powdery mildew of mango is caused by

Which of the following countries is the largest producer of millets in the world? 

The optimum spacing (row × plant) of hybrid cotton grown in the irrigated areas

Given below are two statement, one is labelled as Assertion A and the other is labelled as Reason R

Wheat and Barley cultivation started in which year?

Super rice is developed by