Earths Resources - Biosphere Flashcards

1
Q

biomass

A

the mass of living or recently living plants or animals

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2
Q

biofuels

A

combustable biomass or fuels derived from biomass

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3
Q

domesticated animals

human exploitation of biosphere

A
  • food - livestock such as cows, pigs and sheep
  • clothing - wool, leather, and fur from livestock
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4
Q

agricultural crops

human exploitation of biosphere

A
  • economically significant crops include: wheat, corn, barley, rice, buckwheat, maize, potatoes, sugar beat, cotton
  • these are examples of cereals, roots/tubers, pulses, and sugar crops
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5
Q

forestry

human exploitation of biosphere

A
  • native - hazel, elder, alder, crab apple, silver birch
  • plantation (grown for economic gain) - corsican pine, douglas fir, sitka spruce
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6
Q

hardwood

uses of timber

A
  • diciduous trees which have leaves and seeds (ash, beach, cherry, maple, oak, walnut) are slow growing
  • they are used for high-end furniture, decoative woodwork, decks, and flooring (usually more expensive)
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7
Q

softwood

uses of timber

A
  • conifer trees that have needles and cones (ceder, fir, pine, spruce, larch, redwood) are fast growing
  • they are used for building, furniture, exterior cladding, doors (usually cheaper)
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