SCIENCE
ENVIRONMENTAL SCIENCES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Humans depend upon other organisms for food and oxygen.
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Species extinctions have been rare throughout history
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Loss of biodiversity is not a concern because extinctions are common
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None of the above
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Detailed explanation-1: -Biodiversity loss can have significant direct human health impacts if ecosystem services are no longer adequate to meet social needs. Indirectly, changes in ecosystem services affect livelihoods, income, local migration and, on occasion, may even cause or exacerbate political conflict.
Detailed explanation-2: -Humans affect biodiversity by their population numbers, use of land, and their lifestyles, causing damage to habitats for species. It is important for humans to realize how their actions affect biodiversity and the importance of maintaining what biodiversity is left on the earth.
Detailed explanation-3: -Declining biodiversity lowers an ecosystem’s productivity (the amount of food energy that is converted into the biomass) and lowers the quality of the ecosystem’s services (which often include maintaining the soil, purifying water that runs through it, and supplying food and shade, etc.).
Detailed explanation-4: -Climate change. Changes in climate throughout our planet’s history have, of course, altered life on Earth in the long run. Deforestation and habitat loss. Overexploitation. Invasive species. Pollution.