Topic 2- Humans And The Enviroment Flashcards
What are the conflicting ideas to conserve wildlife?
1) humans need homes/ buildings. This destroys land.
2) natural habitats are destroyed by deforestation
3) the environment has to change to favour the production of food is needed for humans
What are the reasons to conserve wildlife?
Humans like to visit the countryside. It also provides humans with resources such as meat, milk and egg
What is the purpose of intensive farming?
Higher yield in less space
Name 4 examples of intensive farming
1) fertilisers
2) pesticides
3) disease control
4) battery methods
What are the advantages and disadvantages of fertilisers?
Advantage- increase yield
Disadvantage- can wash out of soil and pollute streams and rivers (eutrophication)
What are the advantages and disadvantages of pesticides?
Advantage- increase yield. Prevents pests from eating crops or in competition with crops
Disadvantage- can destroy non pest organisms. Chemicals can be consumed by humans as chemicals remain in the crops
What are the advantages and disadvantages of disease control?
Advantage- prevents loss of organisms to disease
Disadvantage- may be consumed by humans as antibiotics remain in meat
What are the advantages and disadvantages of battery methods?
Advantage- less energy lost so less food needed. Cheaper meat and more animals.
Disadvantage- the quality of life is poor.
What does bovine TB stand for?
Bovine tuberculosis
What animals spread bovine TB to cattle and how do we prevent it?
Badgers and badger culling
What is an alternative method to preventing the spread of bovine TB?
Vaccination