Science
Identify the incorrect statement
‘The energy available to the producers is maximum’ because:
options
- It is the first trophic level which absorbs 1% of light energy directly from the source.
- It utilizes the most of the chemical energy for its own respiration, growth, reproduction, movement etc.
- It utilizes 10% of light energy and transfers the rest to the next trophic level.
- It transfers only 10% of light energy to the next trophic level
Answer
It utilizes 10% of light energy and transfers the rest to the next trophic level.
Reason — Producers (green plants) form the first trophic level in a food chain so they absorb about 1% of the sunlight that reaches them and convert it into chemical energy through photosynthesis which is stored in plant biomass and is the maximum energy available to any trophic level in the ecosystem.
However, producers use most of this energy for their own metabolic activities such as respiration, growth and reproduction and only about 10% of the energy is transferred to the next trophic level (herbivores).
Therefore, the statement claiming that producers “utilize 10% and transfer the rest” is incorrect — it’s actually the opposite.
Related Questions
In the following cases, a ray is incident on a concave mirror. In which case is the angle of incidence equal to zero?
options
- A ray parallel to the principal axis.
- A ray passing through the centre of curvature and incident obliquely.
- A ray passing through the principal focus and incident obliquely.
- A ray incident obliquely to the principal axis, at the pole of the mirror.
Choose the correct option for the colour of rays for A and B.

Colour of Ray A Colour of Ray B A. Blue Red B. Green Yellow C. Red Violet D. Violet Indigo options
- A
- B
- C
- D
Which of the following is not a role of decomposers in the ecosystem?
options
- Natural replenishment of soil.
- Enrichment of oxygen in atmosphere.
- Waste decomposition.
- Break-down of dead remains.
Assertion (A) : On adding dil. HCl to a test tube containing a substance ‘X’, a colourless gas is produced which gives a pop sound when a burning match stick is brought near it.
Reason (R) : In this reaction metal ‘X’ is displaced by Hydrogen.
options
- Both A and R are true, and R is the correct explanation of A.
- Both A and R are true, and R is not the correct explanation of A.
- A is true but R is false.
- A is false but R is true.