Aquatic & Terrestrial Pollution
Which factor is NOT typically associated with threatening wetland ecosystems?
Conversion of wetland areas into agricultural land.
Introduction of invasive species through global trade.
Urban runoff from stormwater drainage systems.
Decreased levels of pollination by insects.
Considering the need for carbon sequestration and habitat protection, how should urban planners integrate mangrove preservation into coastal city development plans?
Designating conservation zones where construction is restricted and investing in green infrastructure like living shorelines elsewhere.
Approving selective logging within mangroves as long as replanting initiatives are introduced simultaneously.
Building levees around key industrial areas only, leaving other mangrove regions open to development pressures.
Encouraging vertical expansion in urban areas away from coastlines without specific measures for mangrove protection.
Which strategy would most effectively mitigate carbon emissions while also protecting coastal ecosystems like mangroves from the impacts of climate change?
Introducing non-native plant species known for rapid carbon sequestration into mangroves areas.
Implementing blue carbon projects that conserve coastal ecosystems as carbon sinks.
Promoting offshore drilling operations near mangrove sites for economic development.
Constructing seawalls exclusively along urban coastlines to reduce erosion only.
Selective removal of certain tree species within mangrove forests often leads to what direct consequence?
Reduced structural complexity affecting habitat availability for many organisms.
Immediate increase in fish populations due to reduced competition for space.
Enhanced carbon sequestration as younger trees grow faster absorbing more CO2.
Greater nutrient cycling efficiency due to increased sunlight penetration onto the forest floor.
What is a potential consequence of introducing non-native plant species during the restoration process after mangrove deforestation?
The introduction aids rapid soil stabilization which compensates for any biodiversity losses caused by deforestation.
They could outcompete native species, leading to reduced biodiversity within the ecosystem.
Native fauna might preferentially pollinate non-native plants, leading to increased biodiversity through cross-species interactions.
Non-native plants can enhance genetic diversity, increasing overall ecosystem resilience against pests.
Considering ecosystem services, what would be a long-term economic consequence of mangrove deforestation for coastal development?
Lower expenditures for wastewater treatment.
Reduced expenses for land reclamation.
Increased costs for storm damage repairs.
Decreased funding needed for beach nourishment.
What is a key role of mangroves in carbon sequestration?
They release large amounts of methane into the atmosphere
They facilitate the breakdown of carbon compounds in the soil
They absorb and store significant amounts of carbon dioxide
They inhibit the process of photosynthesis

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How does the release of excess nutrients into wetland ecosystems primarily affect species diversity?
It increases species diversity by providing more food resources for aquatic plants.
It decreases species diversity by directly poisoning plant and animal life with toxic compounds.
It has no impact on species diversity but changes soil pH making it less habitable.
It decreases species diversity due to algal blooms that reduce oxygen levels.
What is a common unintentional consequence of using fertilizers in agricultural practices near coastal wetlands?
Greater biodiversity due to habitat creation
Eutrophication from nutrient runoff
Increased soil salinity reducing crop yields
Enhanced carbon sequestration by wetland plants
When wetlands are drained for agricultural use, how might this transformation affect carbon sequestration processes?
Carbon capture will decrease only temporarily during the transition period from wetland to farmland.
Carbon release into the atmosphere may increase due to oxidation of previously waterlogged organic matter.
There will be no change in carbon sequestration as the amount of biomass remains constant.
Carbon sequestration would improve as plants grown for agriculture absorb CO2 more efficiently than wetland vegetation.