why does antarctica has such low biodiversity
Antarctica is too cold, dry, and harsh for most life to survive, which is why only a few specially adapted species live there.
Two factors that influence food production?
- Climate affects how well crops can grow because plants need the right temperature and rainfall.
- Technology helps farmers increase production through machinery, irrigation, and improved seeds.
The difference between commercial farming and subsistence farming.
Commercial farming – Grown mainly to sell and make money. Usually large-scale with machines and modern methods.
Subsistence farming – Grown mainly to feed the farmer’s family. Usually small-scale with simple tools.
How humans in Australia have changed biomes to increase food production?
Introducing new animals – Sheep and cattle were brought to Australia from Europe for meat and wool.
what is food security?
Food security means that all people all around the world have enough safe and nutritious food to eat at all times.
explain how food security changes depending on the biome
Food security changes depending on the biome because climate, water, and soil affect how much food can be produced — warm, wet, fertile biomes usually have higher food security, while dry or cold biomes have lower food security.
Explain how humans have altered biomes for food production. Use examples from Australia and other regions.
Humans have altered biomes for food production by clearing forests and grasslands, diverting rivers for irrigation, and introducing livestock and crops.
In Australia, large areas of forest and grassland in New South Wales and Queensland were cleared for sheep, cattle, and crops. The Murray River in the Murray-Darling Basin was altered by irrigation to grow food, which reduced water flow and damaged ecosystems.
In other regions, the Amazon Rainforest has been cleared for cattle farming, and rivers have been diverted to irrigate crops.
