definitions Flashcards
land degradation
the downgrading of land so its not as productive as it used to be.
tariff
a tax on imports
global traders
buying and selling goods between countries
yield
the amount produced per hectare of land
deciduous forest
a type of biomes where the trees drop their leaves and there are four distinct seasons
water scarcity
a lack of fresh water
sustainability
the practice of using natural resources responsibly, so they can support both present and future generations
food security
all people, always have access to sufficient, safe, and nutritious food.
biofuel
fuel made from plants
soil salinity
the salt content in soil.
tundra
a type of biome which is cold, dry, it is also has permafrost
biomes
the major world ecosystems characterised by distinctive climates, soils, and vegetation.
altitude
height above sea level
climate
the weather conditions in an area over a long period of time
grassland
a biome with good quality soil where food is often produced but there is not enough rain for large trees.
