World of Energy MCQ. We covered all the World of Energy MCQ in this post for free so that you can practice well for the exam.
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MCQ on World of Energy
Net primary productivity in plants is
1. rate of organic matter produced in plant
2. rate of use of solar energy
3. rate of storage of organic matter in plants
4. rate of growth of herbivore due to addition of organic matter
Biomass is the total amount of
1. dry mass produced in an ecosystem
2. food produced in an ecosystem
3. energy accumulated by the organism
4. energy expanded by the organisms
Option 1 – dry mass produced in an ecosystem
Fire wood crisis can be overcome by
1. increasing wastelands
2. increasing agricultural land
3. reclaiming wastelands
4. energy plantations
Option 4 – energy plantations
One of the following is not useful as fuel yielding plant in wastelands
1. Subabul
2. Eucalyptus
3. Avicinea
4. Casuarina
Option 3 – Avicinea
1. local people and labour
3. water resources
4. all of these
Option 4 – all of these
Biogas is produced from organic wastes by
1. aerobic fermentation
2. anaerobic fermentation
3. direct burning
4. slow burning
Option 2 – anaerobic fermentation
In which system, electrical potentials are generated
1. nervous system
2. respiratory system
3. circulatory system
4. digestive system
Option 1 – nervous system
The energy yield from one gram of carbohydrate is
1. 2 kcal
2. 3 kcal
3. 4 kcal
4. 9 kcal
Option 4 – 4 kcal
The energy yield from one gram of fats is
1. 9 kcal
2. 3 kcal
3. 2 kcal
4. 6 kcal
Option 1 – 9 kcal
Carnivores cannot digest
1. shells
2. feathers
3. hoofs
4. all
Option 4 – all
The daily requirement of fire wood for domestic use is estimated to be about
1. 3 kilograms
2. 11 kilograms
3. 25 kilograms
4. none
Option 1 – 3 kilograms
One of the following things help to reduce falling of trees
1. small plants
2. weeds
3. wood
4. none
Option 2 – weeds
Biogas consists of
1. -50 to 70% of methane
2. 10-20% of methane
3. 15-30% of methane
4. 25-30% of methane
Option 1 – -50 to 70% of methane
1 kilogram of cow dung gives
1. 200 cc of biogas
2. 2000 cc of biogas
3. 100 cc of biogas
4. 1500 cc of biogas
Option 1 – 200 cc of biogas
The number of stages in which biogas produced is
1. 2
2. 3
3. 4
4. 6
Option 2 – 3
The accumulated hydrocarbons in algae are
1. alkanes
2. alkenes
3. alkynes
4. none
Option 2 – alkenes
Plant containing petroleum products is
1. Casuarina
2. Eucalyptus
3. Calotropis procera
4. Lecucina
Option 3 – Calotropis procera
Synthesis of new molecules in a cell requires the following energy
1. mechanical
2. electrical
3. ATP
4. heat
Option 3 – ATP
Energy in the small particles of light is a kind of
1. bond energy
2. chemical energy
3. thermal energy
4. electromagnetic radiation
Option 4 – electromagnetic radiation
During energy transformation from one form to another the final level of energy will be original energy
1. same as
2. less than
3. more than
4. equal to
Option 2 – less than
Maintenance of cell organelles, cells and organs is ……… process
1. energy consuming
2. energy releasing
3. mechanical
4. thermal
Option 1 – energy consuming
Basal metabolic rate of an organism varies with the following
1. environment
2. body temperature
3. hormonal status
4. all of these
Option 4 – all of these
The basal metabolic rate of a mouse is higher than an elephant because
1. Mouse is more active
2. elephant is active
3. mouse body surface is more to its body weight
4. elephant body surface is more to its body weight
Option 3 – mouse body surface is more to its body weight
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