Challenger App

No.1 PSC Learning App

1M+ Downloads
What is the total amount of solar energy converted (fixed) into chemical energy by green plants called?

ANet Primary Production (NPP)

BSecondary Productivity

CGross Primary Production (GPP)

DBiomass Accumulation

Answer:

C. Gross Primary Production (GPP)

Read Explanation:

  • The amount of organic matter or biomass produced by an individual organism, population, community or ecosystem during a given period of time is called - Productivity

  • The total amount of solar energy converted (fixed) into chemical energy by green plants is called Gross Primary Production (GPP)

  • A certain portion of gross primary production is utilised by plants for maintenance (largely respiratory energy loss) and the remainder is called - Net Primary Production (NPP) (which appears as new plant biomass)


Related Questions:

Which statement accurately describes 'offstem' reservoirs?

  1. Offstem reservoirs are constructed in low land areas by pumping water from a river or underground source.
  2. Offstem reservoirs are typically located in upland regions and created by damming.
  3. The water source for offstem reservoirs is always a natural spring.

    Identify the primary atmospheric circulation pattern associated with the location of large hot deserts.

    1. The Hadley Cell dominates atmospheric circulation in tropical areas.
    2. Large hot deserts are typically found under the descending limb of the Hadley Cell.
    3. The ascending limb of the Hadley Cell, which brings rainfall, is characteristic of desert regions.
    4. The Ferrel Cell is the primary driver of desert formation in tropical latitudes.
      The Gobi Desert in Asia is an example of which type?

      Which of the following statements about dissolved oxygen in lake ecosystems is correct?

      1. Dissolved oxygen is generally higher in stagnant lake waters compared to flowing lotic systems.
      2. The oxygen content in lakes typically decreases with depth.
      3. Only the surface layer of a lake interacts with atmospheric oxygen.
      4. Decomposition of organic matter does not affect dissolved oxygen levels.

        Which of the following statements about the size and scale of ecosystems is correct?

        1. Ecosystems always maintain a fixed, predictable size.
        2. The scale of an ecosystem can range from extremely large to very small.
        3. A tropical rainforest is an example of a small-scale ecosystem.