Energy Flow in Ecosystem
What is ultimate source of energy in an ecosystem?
Sunlight
Nutrients
Food
Water
Sunlight
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50% of incident energy is lost due to:A. Consumers
B. Producers
C. Microorganisms
D. Planktons
Which law states that, conversion of energy from one form to another is not 100% efficient?
A. First law of thermodynamics
B. Second law of thermodynamics
C. Energy flow
D. Biological system
What is an average incident energy ?
A. 3000kcal/m2/day
B. 2000kcal/m2/day
C. 5000kcal/m2/day
D. 6000kcal/m2/day
Phenomenon, by which some primarily bacteria utilize chemicals to generate energy rich compounds, known as
A. Autosynthesis
B. Polysynthesis
C. Photosynthesis
D. Chemosynthesis
Bacteria obtains useful energy by oxidation of certain elements, such as:
A. Nutrients
B. Sulphur and iron
C. Calcium
D. Phosphorous
Most of solar radiation is reflected by
A. Atmospheric clouds
B. dust
C. gases
D. All of above
One way flow of energy through an ecosystem continuous in
A. Biological System
B. Chemical process
C. Environment
D. Atmosphere
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