Flashcards
Applied Year 10 - Topic 2.2 Protecting our environment
Flashcards do conjunto (10)
- 1What is bioaccumulation?Heavy metals, present in industrial waste and pesticides, enter the food chain, accumulate in animal bodies and may reach a toxic level
- 2What is eutrophication?1. Untreated sewage and fertilisers may
run into water and cause rapid growth of plants and algae.
2. These then die and are decomposed; the microbes, which break them down, increase in number and use up the dissolved oxygen in the water.
3. Animals which live in the water may suffocate - 3What is a disadvantage of plastic?Plastics are non-biodegradable and so there is an increase pressure on landfill
- 4What is a habitat?A habitat is a place where an organism or a community of organisms live.
- 5Why are habitats being destroyed?Destruction of habitat due to
increased land use for building,
quarrying, dumping and
agriculture - 6Why is destroying habitats a problem?Causes loss of species and a reduction in biodiversity
- 7What measures are in place to ensure sustainability?Reduce, reuse, recycle schemes or
the use of biodegradable materials
in packaging - 8Why is the disposal of waste in landfill sites a problem?Non-degradable products use productive land in landfill, and partial breakdown produces toxic materials that may leak into the environment.
- 9What is the difference between living and non-living indicators?Living indicators will only grown in certain conditions and so you can tell the quality of water/air from the type of species living there e.g. lichens.
Non-living indicators is the use of technology to test pH level and oxygen levels in streams. - 10How can biodiversity and endangered species be conserved?• Convention on International Trade in Endangered Species
• Sites of Special Scientific Interest
• captive breeding programmes
• national parks
• seed/ sperm banks
Informações
- Descrição
- GCSE Biology FlashCards sobre Applied Year 10 - Topic 2.2 Protecting our environment, criado por Mrs Z Rourke em 29-03-2018.
- Criado por
- Mrs Z Rourke · mar 2018
- Atualizado
- 29 mar 2018
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