Podcast
Questions and Answers
Why are fertilisers needed in an ecosystem?
Why are fertilisers needed in an ecosystem?
- To reduce the efficiency of energy transfer in the ecosystem.
- To replace lost nutrients from the soil when crops are harvested or livestock is removed. (correct)
- To prevent the growth of algae in ponds and rivers.
- To limit the productivity of agricultural land.
Which type of fertilisers can lead to leaching of nutrients into waterways?
Which type of fertilisers can lead to leaching of nutrients into waterways?
- Artificial fertilisers
- Inorganic fertilisers (correct)
- Organic fertilisers
- Natural fertilisers
What environmental issue can arise from the leaching of fertilisers into waterways?
What environmental issue can arise from the leaching of fertilisers into waterways?
- Climate change
- Desertification
- Eutrophication (correct)
- Deforestation
What happens when nutrients are removed from the soil and incorporated into biomass?
What happens when nutrients are removed from the soil and incorporated into biomass?
How do organic fertilisers like manure differ from inorganic fertilisers?
How do organic fertilisers like manure differ from inorganic fertilisers?
What is one consequence of leaching due to excess fertiliser application?
What is one consequence of leaching due to excess fertiliser application?
Why are natural fertilisers like compost considered environmentally friendly?
Why are natural fertilisers like compost considered environmentally friendly?
What is a primary reason for using artificial fertilisers over natural fertilisers?
What is a primary reason for using artificial fertilisers over natural fertilisers?
What impact does leaching of water-soluble compounds from excessive fertilizer use have on aquatic ecosystems?
What impact does leaching of water-soluble compounds from excessive fertilizer use have on aquatic ecosystems?
How does the use of organic fertilizers like manure differ from synthetic fertilizers in terms of cost and nutrient control?
How does the use of organic fertilizers like manure differ from synthetic fertilizers in terms of cost and nutrient control?
What is the term for the process where rain or irrigation systems wash water-soluble compounds out of soil into waterways?
What is the term for the process where rain or irrigation systems wash water-soluble compounds out of soil into waterways?
What is the consequence of an algal bloom in ponds and rivers?
What is the consequence of an algal bloom in ponds and rivers?
Why is leaching less likely with natural fertilisers compared to synthetic ones?
Why is leaching less likely with natural fertilisers compared to synthetic ones?
What happens to aquatic organisms when the oxygen concentration in water decreases?
What happens to aquatic organisms when the oxygen concentration in water decreases?
How does leaching impact species diversity in an ecosystem?
How does leaching impact species diversity in an ecosystem?
