B3 - Problems With Food Production Flashcards
What can easily occur when animals are in crowded spaces?
Spread of disease.
How do farmers prevent the spread of disease between crowded animals?
Gives them antibiotics.
What is the problem with farmers giving antibiotics to crowded animals?
It can cause resistance so they become less effective as a human medicine.
What effect does a lot of food miles have on the cost of production?
Makes it more expensive.
Apart from the cost, what is another disadvantage of a large amount of food miles?
Fossil fuels used for petrol contribute to global warming.
What has overfishing led to?
Declining fish stocks.
What are the results of declining fish stocks? [3]
1) less fish to eat.
2) food chains are affected.
3) extinction.
Name 2 ways to prevent overfishing.
1) fishing quotas.
2) altering net size.
What are fishing quotas?
They set limits on the number & size of fish caught.
How does altering the net size prevent overfishing?
Making the mesh size bigger means that less unwanted/young fish are caught.
What has the opinion that battery farming is cruel led to?
A demand for organic meat.