Conservation biologists provide strong arguments about why we should all care ab
ID: 267091 • Letter: C
Question
Conservation biologists provide strong arguments about why we should all care about preserving biodiversity. When considering the resources we get from nature as well as the services the ecosystem perform, it is clear that life on Earth is threatened when biodiversity itself is threatened. Which of the following are services by natural, well-functioning ecosystems?
Nutrient cycling
Decomposition of dead orangisms
Dispersal of pollen and seeds
Increase in ambient global temperatures
Purification of air and water
Reduction in the severity of drought and floods
Pollination of crops and natural vegetation
An increase of erosion and siltation along waterways
Source of medicines
Recyling energy to be used again
Regulation of oxygen and carbon dioxide levels
Explanation / Answer
Answer-
Nutrient cycle is run by nature, food chain and food web are the results of trophic levels set by nature.
Decomposition of dead organism is done by detrivores is natural process.
dispersal of pollen and seed is done by wind, water, insects etc is natural process.
# increase in global temperature is due to industrialization and human activities, it is not natural.
Purification of air and water is also done by nature, many layers of soil and sand filters the ground water.
Reduction of severity of drought and floods is done by ampul amount of forests. also natural process.
Pollination of crops and natural vegetation is also done by natural agents likes birds.
Sources of medicine are the plants, and microorganisms so this is also provided by nature.
Recycling of energy from one to other and the ultimate source of energy is Sun.
regulation of Oxygen and carbon dioxide levels is also done by nature by maintaining plants and number of animals in ecosystem.
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