chapter 15-dirt Flashcards
malnutrition
not getting the correct nutrients
undernutrition
not enough food/calories
arable land
fertile land that can be plowed for crops
topsoil
soil that’s on the top that we grow plants in
erosion
wearing away of the top soil by wind and water
droughts
long term of not getting any precipitation
desertification
When the topsoil wears away and plant life can no longer grow
saltinization
salt accumulates in the soil
what are the 3 components of soil
sand
silt
clay
what are the 3 main chemicals we test for in soil
nitrogen
potassium
phosphorus
not getting the correct nutrients
malnutrition
not enough food/calories
undernutrition
fertile land that can be plowed for crops
arable land
soil that’s on top that we grow plants in
topsoil
wearing away of the top soil by wind and water
erosion
long term of not getting any precipitation
droughts
When the topsoil wears away and plant life can no longer grow
desertification
salt accumulates in the soil
saltinization
sand
silt
clay
the three different components of soil
nitrogen
potassium
phosphorus
the three main chemicals we test for in soil
Famine
Wide spread food shortage
Wide spread food shortage
Famine
Diet
What you eat and the amount of it
What you eat and the amount you eat
Diet
Yield
Amount of product per unit area
Amount of product per unit area
Yield
Compost
Adds organic matter, holds water, add nutrients
Adds organic matter, holds water, adds nutrients
Compost
Pesticides
Any chemical that kills pests
Any chemical that kills pests
Pesticides
Biological pest control
Use living or naturally produces chemicals to control pests
Use living or naturally produced chemicals to control pets
Biological pest control
Genetic engineering
GMO’s manipulating genes for desired outcome
GMO’s manipulating genes for desired outcome
Genetic engineering
Low input farming
Least amount of energy/resources to produce crops/organic farming
Least amount of energy/resources to produce crops/organic farming
Low input farming
Domesticated
Any plant or animal brought under human control
Any plant or animal brought under human control
Domesticated
Overharvesting
Removing too much from nature/refers to fishing
Removing too much from nature/refers to fishing
Overharvesting
Livestock
Animals that are raised and sold for profit/food
Animals that are raised and sold for profit/food
Livestock
Ruminant
Animals with multi chamber stomachs that can digest food humans can not digest
Animals with multi chamber stomachs that can digest food humans can not digest
Ruminant