Vedclass
Class 12BiologyEcosystemProductivity
Medium

The annual net primary productivity of the whole biosphere is approximately $...........$ (dry weight) of organic matter.

  • A
    $170$ million tonnes
  • B
    $170$ billion tonnes
  • C
    $70$ million tonnes
  • D
    $70$ billion tonnes
Share

Explore More

Browse All

Question Bank

12

All Subjects

Class 12 Questions

Class 12

Biology Questions

Chapter

Ecosystem

Subtopic

Productivity

Similar Questions

The amount of organic matter stored by green plants in a unit time and area is called

Medium
View Solution

The amount of biomass available for consumption by herbivores and decomposers is called:

Medium
View Solution

Assertion : Net primary productivity is gross primary productivity minus respiration.
Reason : Secondary productivity is produced by heterotrophs.

MediumAIIMS 2013
View Solution

Net Primary Productivity $(NPP)$ is defined as .....

Medium
View Solution

The Annual Net Primary Productivity on land and ocean respectively are . . . . . . and . . . . . . billion tons.

EasyKCET 2026
View Solution

Vedclass Products

For Students

Vedclass Test Series

Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.

Start Free Trial
For Teachers

Exam Paper Generator

Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.

Try Free
For Institutes

Online Exam Module

Live online exams with unlimited students, 360° analytics & white-label branding.

See Demo