Prepotency increase with increase in________?

A mineral horizon that is either too thin, too light in colour, too low in organic matter:

Loss of sensation and heart enlargement are caused due to deficiency of________?

Percentage of area irrigated by a cusec of water during the season is called________?

Pulling of off- type plants from a cropped field is called________?

The process of converting food nutrients to carbohydrates in plants is called________?