Role of biodiversity in ecosystem services MCQs

By: Prof. Dr. Fazal Rehman Shamil | Last updated: September 12, 2024

 

Biodiversity contributes to ecosystem resilience by:
a) Reducing the ability of ecosystems to recover from disturbances
b) Enhancing the stability and productivity of ecosystems
c) Increasing the susceptibility of ecosystems to environmental changes
d) Decreasing the efficiency of nutrient cycling
Answer: b) Enhancing the stability and productivity of ecosystems

Which of the following is a provisioning service provided by biodiversity?
a) Pollination of crops
b) Regulation of climate
c) Soil formation
d) Provision of food and medicine
Answer: d) Provision of food and medicine

What is an example of a regulating service that biodiversity supports?
a) Creation of habitats
b) Water purification
c) Soil erosion control
d) Genetic resources
Answer: b) Water purification

Biodiversity helps in maintaining the productivity of ecosystems by:
a) Reducing the number of species
b) Increasing competition among species
c) Ensuring a variety of species that contribute to ecosystem functions
d) Decreasing the availability of resources
Answer: c) Ensuring a variety of species that contribute to ecosystem functions

Which ecosystem service is directly affected by the loss of pollinators?
a) Water purification
b) Climate regulation
c) Crop production
d) Soil formation
Answer: c) Crop production

What role does biodiversity play in climate regulation?
a) It reduces the amount of carbon dioxide in the atmosphere
b) It increases the intensity of climate fluctuations
c) It has no effect on climate regulation
d) It decreases the efficiency of climate regulation processes
Answer: a) It reduces the amount of carbon dioxide in the atmosphere

How does biodiversity contribute to soil fertility?
a) By reducing the number of soil organisms
b) By increasing the erosion of topsoil
c) By promoting nutrient cycling and organic matter decomposition
d) By decreasing the availability of nutrients
Answer: c) By promoting nutrient cycling and organic matter decomposition

Which of the following is an example of a cultural ecosystem service?
a) Provision of clean water
b) Aesthetic and recreational benefits
c) Regulation of air quality
d) Soil stabilization
Answer: b) Aesthetic and recreational benefits

How does biodiversity affect the stability of ecosystems?
a) By making ecosystems more vulnerable to disturbances
b) By decreasing the resilience of ecosystems
c) By enhancing the ability of ecosystems to withstand and recover from disturbances
d) By increasing the variability of ecosystem functions
Answer: c) By enhancing the ability of ecosystems to withstand and recover from disturbances

Which ecosystem service is provided by wetlands and their biodiversity?
a) Carbon sequestration
b) Soil erosion
c) Pollution generation
d) Loss of habitat
Answer: a) Carbon sequestration

What is a key benefit of biodiversity in agricultural ecosystems?
a) Increased use of synthetic pesticides
b) Enhanced pollination and pest control
c) Decreased soil fertility
d) Reduced crop yields
Answer: b) Enhanced pollination and pest control

Which of the following best describes a supporting ecosystem service?
a) Provision of fresh water
b) Pollination of plants
c) Maintenance of soil fertility
d) Regulation of greenhouse gases
Answer: c) Maintenance of soil fertility

How does biodiversity influence ecosystem productivity?
a) By reducing the amount of energy available to ecosystems
b) By increasing the variety of functional roles and interactions
c) By limiting the diversity of species in the ecosystem
d) By decreasing the availability of resources
Answer: b) By increasing the variety of functional roles and interactions

Which service is enhanced by maintaining diverse plant species in a forest?
a) Water filtration
b) Soil erosion
c) Air pollution
d) Urban development
Answer: a) Water filtration

What is the impact of losing top predators in an ecosystem?
a) Increased biodiversity
b) Decreased ecosystem stability
c) Enhanced nutrient cycling
d) Improved habitat quality
Answer: b) Decreased ecosystem stability

Which ecosystem service involves the generation of new genetic material?
a) Pollination
b) Soil formation
c) Genetic diversity
d) Water purification
Answer: c) Genetic diversity

Biodiversity can enhance the resilience of ecosystems by:
a) Decreasing the number of species interactions
b) Providing a range of species that can perform similar functions
c) Increasing the predictability of ecosystem responses
d) Reducing the availability of resources
Answer: b) Providing a range of species that can perform similar functions

What role does biodiversity play in flood regulation?
a) It increases the speed of floodwater flow
b) It contributes to the formation of impervious surfaces
c) It helps in the absorption and slow release of water
d) It reduces the effectiveness of natural flood barriers
Answer: c) It helps in the absorption and slow release of water

How does biodiversity support the provisioning of clean air?
a) By reducing the amount of oxygen produced
b) By absorbing and filtering air pollutants
c) By increasing the concentration of greenhouse gases
d) By contributing to air pollution
Answer: b) By absorbing and filtering air pollutants

Which ecosystem service is related to the maintenance of genetic diversity?
a) Provision of food
b) Regulation of climate
c) Support for species adaptation
d) Soil nutrient cycling
Answer: c) Support for species adaptation

How does biodiversity impact the effectiveness of ecosystems in nutrient cycling?
a) It decreases nutrient cycling efficiency
b) It increases the rate of nutrient depletion
c) It enhances nutrient uptake and recycling processes
d) It reduces the number of nutrient cycling organisms
Answer: c) It enhances nutrient uptake and recycling processes

Which of the following is a direct benefit of maintaining plant biodiversity in an ecosystem?
a) Increased soil erosion
b) Reduced water availability
c) Enhanced pollination and pest control
d) Increased habitat destruction
Answer: c) Enhanced pollination and pest control

What is an example of a regulating service provided by forests?
a) Water purification
b) Soil erosion control
c) Carbon sequestration
d) Habitat provision
Answer: c) Carbon sequestration

How does biodiversity contribute to ecosystem stability?
a) By reducing species interactions
b) By increasing ecosystem vulnerability
c) By maintaining balanced species interactions
d) By decreasing functional redundancy
Answer: c) By maintaining balanced species interactions

Which ecosystem service is most affected by deforestation?
a) Soil fertility
b) Carbon sequestration
c) Water purification
d) Pollination
Answer: b) Carbon sequestration

How does biodiversity impact the recovery of ecosystems after disturbances?
a) It slows down recovery processes
b) It reduces the ability of ecosystems to recover
c) It enhances the speed and effectiveness of recovery
d) It has no effect on recovery
Answer: c) Enhances the speed and effectiveness of recovery

Which of the following is a cultural ecosystem service provided by biodiversity?
a) Water filtration
b) Biodiversity education and research
c) Soil stabilization
d) Pollination
Answer: b) Biodiversity education and research

What role does biodiversity play in the regulation of pests?
a) It reduces the effectiveness of natural pest control
b) It increases the number of pest outbreaks
c) It enhances the presence of natural pest predators
d) It has no impact on pest regulation
Answer: c) It enhances the presence of natural pest predators

How does biodiversity contribute to the availability of medicinal resources?
a) By decreasing the number of medicinal plants
b) By increasing the genetic diversity of medicinal plants
c) By reducing the effectiveness of medicinal resources
d) By limiting the availability of medicinal plants
Answer: b) By increasing the genetic diversity of medicinal plants

Which ecosystem service involves the provision of habitat for wildlife?
a) Water purification
b) Soil formation
c) Habitat provision
d) Climate regulation
Answer: c) Habitat provision

How does biodiversity affect the cycling of nutrients in an ecosystem?
a) By decreasing nutrient recycling processes
b) By increasing nutrient availability and recycling
c) By reducing the efficiency of nutrient uptake
d) By limiting the number of nutrient cycling organisms
Answer: b) By increasing nutrient availability and recycling

Which service is particularly enhanced by the presence of diverse aquatic species in a wetland?
a) Flood regulation
b) Soil erosion control
c) Water purification
d) Genetic diversity
Answer: c) Water purification

How does biodiversity influence the availability of fresh water?
a) By reducing the effectiveness of water filtration
b) By increasing water contamination
c) By enhancing the ability of ecosystems to filter and regulate water
d) By decreasing the quantity of fresh water available
Answer: c) By enhancing the ability of ecosystems to filter and regulate water

What is a benefit of maintaining biodiversity in urban environments?
a) Increased pollution
b) Reduced green space
c) Improved air quality and recreational opportunities
d) Decreased habitat quality
Answer: c) Improved air quality and recreational opportunities

How does biodiversity contribute to ecosystem productivity in a coral reef?
a) By limiting the number of coral species
b) By increasing nutrient depletion
c) By supporting complex food webs and nutrient cycling
d) By reducing the diversity of marine life
Answer: c) By supporting complex food webs and nutrient cycling

Which ecosystem service is enhanced by preserving a variety of soil organisms?
a) Climate regulation
b) Soil fertility and structure
c) Water purification
d) Air quality
Answer: b) Soil fertility and structure

What role does biodiversity play in the resilience of agricultural systems?
a) It decreases the effectiveness of crop pollination
b) It increases susceptibility to crop pests
c) It supports ecosystem functions such as pollination and pest control
d) It has no impact on agricultural resilience
Answer: c) It supports ecosystem functions such as pollination and pest control

Which of the following is an example of a provisioning service in marine ecosystems?
a) Regulation of ocean temperature
b) Provision of seafood
c) Protection from coastal erosion
d) Carbon sequestration
Answer: b) Provision of seafood

How does biodiversity influence the regulation of disease in ecosystems?
a) By reducing the number of disease vectors
b) By increasing the spread of diseases
c) By limiting the effectiveness of disease regulation
d) By decreasing the diversity of disease vectors
Answer: a) By reducing the number of disease vectors

What is an example of a regulating service provided by mangroves?
a) Soil formation
b) Carbon sequestration
c) Provision of medicinal resources
d) Water purification
Answer: b) Carbon sequestration

How does biodiversity contribute to the overall health of ecosystems?
a) By decreasing ecosystem stability
b) By enhancing ecosystem functions and services
c) By reducing the number of species interactions
d) By limiting the availability of resources
Answer: b) By enhancing ecosystem functions and services

Which ecosystem service is impacted by the loss of riparian vegetation?
a) Water purification
b) Soil erosion control
c) Pollination
d) Carbon sequestration
Answer: a) Water purification

What is a key benefit of maintaining plant and animal diversity in a grassland ecosystem?
a) Increased soil erosion
b) Enhanced soil fertility and resilience
c) Reduced water retention
d) Decreased productivity
Answer: b) Enhanced soil fertility and resilience

How does biodiversity influence the availability of natural resources for human use?
a) By decreasing the number of available resources
b) By increasing the rate of resource depletion
c) By maintaining the stability and availability of natural resources
d) By reducing the effectiveness of resource utilization
Answer: c) By maintaining the stability and availability of natural resources

Which ecosystem service is provided by the diversity of plant species in a wetland?
a) Pollination
b) Water regulation
c) Soil stabilization
d) Air quality improvement
Answer: b) Water regulation

How does biodiversity affect the provision of ecosystem services in mountain regions?
a) By reducing the stability of mountain ecosystems
b) By increasing the risk of landslides
c) By supporting a range of ecosystem functions and services
d) By decreasing water availability
Answer: c) By supporting a range of ecosystem functions and services

What role does biodiversity play in the functioning of ecosystems?
a) It decreases ecosystem productivity
b) It supports various ecological processes and services
c) It limits the range of ecosystem functions
d) It has no impact on ecosystem functioning
Answer: b) It supports various ecological processes and services

How does biodiversity contribute to the mitigation of climate change?
a) By increasing greenhouse gas emissions
b) By enhancing carbon sequestration in vegetation and soils
c) By reducing the effectiveness of climate regulation
d) By limiting the availability of carbon sinks
Answer: b) By enhancing carbon sequestration in vegetation and soils

Which of the following is a benefit of maintaining a diverse marine ecosystem?
a) Increased pollution
b) Reduced fishery productivity
c) Enhanced resilience and productivity of marine species
d) Decreased water quality
Answer: c) Enhanced resilience and productivity of marine species

How does biodiversity support the stability of ecosystem services?
a) By decreasing the number of service providers
b) By increasing the redundancy of functional roles
c) By reducing the effectiveness of service provision
d) By limiting the variety of ecosystem functions
Answer: b) By increasing the redundancy of functional roles

Which ecosystem service is supported by diverse microbial communities in soil?
a) Water purification
b) Nutrient cycling and soil fertility
c) Climate regulation
d) Habitat provision
Answer: b) Nutrient cycling and soil fertility

How does biodiversity influence the ability of ecosystems to adapt to environmental changes?
a) By reducing the potential for adaptation
b) By increasing the adaptability of ecosystems through genetic diversity
c) By limiting the range of adaptive responses
d) By decreasing the availability of adaptation strategies
Answer: b) By increasing the adaptability of ecosystems through genetic diversity

What is an example of an ecosystem service provided by riparian zones?
a) Water filtration
b) Soil erosion control
c) Carbon sequestration
d) Biodiversity conservation
Answer: a) Water filtration

Which of the following services is enhanced by preserving forest biodiversity?
a) Air quality improvement
b) Soil fertility
c) Climate regulation
d) Water purification
Answer: c) Climate regulation

How does biodiversity affect the productivity of ecosystems?
a) By reducing the efficiency of resource use
b) By increasing the variety of species that contribute to productivity
c) By limiting the availability of resources
d) By decreasing the number of productive species
Answer: b) By increasing the variety of species that contribute to productivity

What role does biodiversity play in maintaining ecosystem services during extreme events?
a) It decreases the ability of ecosystems to recover
b) It reduces the effectiveness of ecosystem services
c) It enhances the capacity of ecosystems to withstand and recover from extreme events
d) It limits the availability of ecosystem services
Answer: c) It enhances the capacity of ecosystems to withstand and recover from extreme events

Which ecosystem service is provided by diverse plant species in an agricultural system?
a) Increased use of chemical fertilizers
b) Enhanced soil fertility and crop yield
c) Reduced pest control
d) Decreased biodiversity in crops
Answer: b) Enhanced soil fertility and crop yield

How does biodiversity contribute to the management of natural disasters?
a) By increasing the frequency of natural disasters
b) By reducing the effectiveness of disaster mitigation measures
c) By supporting natural buffers and resilience against disasters
d) By limiting the ability of ecosystems to recover
Answer: c) By supporting natural buffers and resilience against disasters

What is a benefit of preserving a diverse range of plant species in a tropical rainforest?
a) Increased deforestation
b) Enhanced nutrient cycling and ecosystem stability
c) Reduced biodiversity
d) Decreased habitat quality
Answer: b) Enhanced nutrient cycling and ecosystem stability

Which ecosystem service is particularly dependent on the diversity of fish species in coral reefs?
a) Water purification
b) Coastal protection
c) Nutrient cycling
d) Carbon sequestration
Answer: c) Nutrient cycling

How does biodiversity influence the availability of recreational and cultural benefits?
a) By decreasing the attractiveness of natural areas
b) By reducing the opportunities for outdoor activities
c) By enhancing the aesthetic and experiential value of natural environments
d) By limiting access to natural areas
Answer: c) By enhancing the aesthetic and experiential value of natural environments

What is an example of a supporting ecosystem service that biodiversity provides?
a) Soil formation
b) Pollination
c) Water regulation
d) Genetic diversity
Answer: d) Genetic diversity

How does biodiversity contribute to the provision of clean air in urban areas?
a) By increasing air pollution
b) By decreasing the availability of green spaces
c) By enhancing the ability of plants and trees to filter air pollutants
d) By reducing the number of air-purifying species
Answer: c) By enhancing the ability of plants and trees to filter air pollutants

Which ecosystem service is most affected by the loss of wetlands?
a) Water purification
b) Soil formation
c) Pollination
d) Climate regulation
Answer: a) Water purification

How does biodiversity impact the stability and functioning of ecosystems?
a) By reducing the range of ecological interactions
b) By supporting a variety of ecological processes and functions
c) By decreasing the number of species d) By limiting the availability of ecosystem services
Answer: b) By supporting a variety of ecological processes and functions

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