Define gross primary productivity.

Read the given statements and select the correct option. Statement 1: Net primary productivity is less than the gross primary productivity. Statement 2 : Net primary productivity is equal to the gross primary productivity minus the respiration losses.

Define net primary productivity.

Discuss the gross primary productivity is more efficient than net primary productivity.

Discuss the gross primary productivity is more efficient than net primary productivity.

Define primary productivity .

List the factors affecting primary productivity.

Write about the factors affecting primary productivity.

Match column I with column II and select the correct option from the given codes. {:("column I","column II") , ("Gross primary productivity",(i)"Geen plants"),("Secondary productivity",(ii)"Rate of synthesis of organic matter by consumers"),("Transduc {:("column I","column II"),("Bacteria",(i)"Prisere"),("Green plants",(ii)"Transducers"),("Primary succession",(iii)"Lithosere"),("Succession on bare rock",(iv)"Micro-consumers"):}

Assertion: Amount of organic matter synthesized by producers per unit time and per unit area during the process of photosynthesis referred to as net primary productivity. Reason: Primary productivity is usually high and sustained throughout the year in temperate areas due to abundance of sunlight.