Which of the following is not a structural aspect of an ecosystem?

Stratification is more pronounced in

The average price tag for ecosystem services has been placed at around $.........$ per year.

Choose the odd one out with respect to the functional aspects of an ecosystem.

Write important features of a sedimentary cycle in an ecosystem.

$A$ farmer harvests his crop and expresses his harvest in three different ways.
$(a)$ $I$ have harvested $10$ quintals of wheat.
$(b)$ $I$ have harvested $10$ quintals of wheat today in one acre of land.
$(c)$ $I$ have harvested $10$ quintals of wheat in one acre of land,$6$ months after sowing.
Do the above statements mean one and the same thing? If your answer is yes,give reasons. If your answer is 'no',explain the meaning of each expression.