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This set of Biology Multiple Choice Questions & Answers (MCQs) focuses on Ecosystem Set 4
Q1 | Which one is the maximum suitable to from top of the energy pyraimd ?
- Therdary consumer
- Secondary consumer
- Producers
- None of this
Q2 | Which component are basic in maintaing body processes?
- Carbohydrate
- Water
- Energy
- All of this
Q3 | What is mycorhizer ?
- Root + Fungi = Symbioti
- Root+ bacteria = Symbiotic
- fungi +Root = Parasitism
- Fungi +leaf = Parasitism
Q4 | It is key- compound for all living organism ?
- Sulphar
- Phosphures
- Nitrogen
- Calcium
Q5 | It 1 lac living organisms are included in third throphie lavel than what would be the number of producers ?
- 10 lac
- 10 thousand
- 1 thousand
- 1crore (millian)
Q6 | In an ecosystem, when organisms can be included in more than one trophic lager ?
- Phytoplankton
- Fish
- Zooplanktm
- Frog
Q7 | When organism of aquatic ecosystem is at equvalent trophee level in when cow is included ?(DUMET...2009)
- Zooplankton
- Phytoplakton
- Nekton
- Benthos
Q8 | Which of the follows is an in complent Ecosystem ? (WBJEE 2008)
- Grass land
- Cave
- River
- Wet land
Q9 | What is correct for human ?
- Herbivore
- Carnivore
- Autotrophs
- Omnivores
Q10 | which type of food chain is represented by following example ?Dead animals ??? insect seavenger ??? Frog ???Snake
- Grazzing food chain
- Detritivorous food chain
- Decomposer food chain
- Predators food chain.
Q11 | which type of organisms , fungi & Bacteria of forest ecosystem generally called ?
- Prodlucer
- Decomposers
- Primary consumer
- Secondary consumers
Q12 | what is correct for the artificial ecosystem ?
- Biodiversity is less
- Biodiversity is High
- Ecosystem is can not be form by human
- It is more stable than Netural ecosystem
Q13 | Pollution is any undesirable change in physical, chemical and biological characteristics of.
- Land
- Soil
- Air and Water
- All of these
Q14 | To protect and improve the quality of our environment which act was passed and in Which year?
- The environment act 1986
- The environment act 1988
- The Air (Prevention and control of pollution) act 1981
- The Water (Prevention and control of pollution) act 1974
Q15 | What is the effect of air pollution on living organisms?
- Reduce growth and yield of crops
- Cause premature death of plants
- Premature leaf fall
- Both A and B
Q16 | Which gas is responsible for increase in atmospheric temperature?
- O2
- CO2
- SO2
- CO
Q17 | 99% of SPM in the exhaust of thermal power plant can be separated by.. .
- Electrostatic precipitator
- Solvents
- Scrubber
- Chimney
Q18 | In an Electrostatic precipitators the velocity of air blown between the plates must be.
- Low
- High
- Moderate
- Very high
Q19 | The Scrubber is used to remove gases like…
- SO2
- NO2
- CO2
- SO3
Q20 | Particulate matter of which size causes greatest harm to human health?
- 2.5 micrometer or less in diameter
- More than 2.5 micrometer
- More than 3.5 micrometer
- Less than 3.5 micrometer
Q21 | Which type of damage can be caused by Particulate matter of 2.5 micrometer or less in diameter to human health?
- Breathing and respiratory symptom
- Inflammation and damage to lungs
- Premature death of an individual
- All of these
Q22 | Which is the main cause of atmospheric pollution in major cities?
- Industrialization
- Noise
- Automobiles
- Dust particles and SPM
Q23 | Which catalyst should be fitted into filters in order to reduce emission of poisonous Gases?
- Selenium
- Rhodium
- Magnesium
- Manganese
Q24 | Which metal is the main air pollutant in metro cities?
- Lead
- Copper
- Magnesium
- Iron
Q25 | Which catalyst converts unburnt hydrocarbons into CO2 andH2O?
- Platinum-Palladium
- Platinum-Chloride
- Palladium- Chloride
- Lead