When is Nelson Mandela International Day observed

The nutrient removed in maximum quantity by paddy crop is:

“Corky core” in apples and “cracked fruit” of peaches is due to the deficiency of 

Which is not the macronutrient?

Which is the essential base for all metabolic processes? 

The deficiency symptom of which of the following nutrient first appears on terminal bud of the plants is

While conducting a chi-square test to examine the independence of attributes in an m x n contingency table, what formula determines the degree of freedom?

Methemoglobinemia disease is caused due to toxic concentration of

Study of communities is known as 

What is the general average carbon/nitrogen ratio found in soils?

Micrografting is primarily used to produce plants free from: