Green manuring enhances crop yield by

In the world,more than ...... people do not have access to adequate food to meet their daily food and nutritional requirements.

Silk,honey and lac are:

$A$ large number of people become victims of hidden hunger in India. What is the primary reason for this?

Majority of people suffer from protein,vitamins and micronutrient deficiencies. Their food does not contain essential micronutrients specially:
$I$. iron
$II$. iodine
$III$. zinc
$IV$. vitamin-$A$
Which of the above are correct?

Shahtoosh is obtained from: