b6.2.2 feeding the world

Question 1

what is sustainable food production

Answer 1

producing food so that it can be continued indefinitely

Question 2

examples of sustainable food production

Answer 2

fish farming
reducing the use of fertilisers
hydroponic systems

Question 3

fish farming

Answer 3

limiting the number of fishes that can be caught
limiting the mesh size of nets, so only bigger fishes can be caught
fishes can also be farmed and bred in large cages

Question 4

what does keeping animals in cages do

Answer 4

viruses and bacteria can move quickly between the animals

they have less space to move in

Question 5

reducing fertilisers

Answer 5

use manure
crop rotation (planting different plants at different times of the year)
biological control (increases predators for specific pests)
using gene technology (pest-resistant plants)

Question 6

hydroponic systems

Answer 6

plants are grown in water with minerals inside so they grow quicker