Earths Resources - Biosphere

Question 1

biomass

Answer 1

the mass of living or recently living plants or animals

Question 2

biofuels

Answer 2

combustable biomass or fuels derived from biomass

Question 3

domesticated animals

human exploitation of biosphere

Answer 3

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

Question 4

agricultural crops

human exploitation of biosphere

Answer 4

• 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

Question 5

forestry

human exploitation of biosphere

Answer 5

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

Question 6

hardwood

uses of timber

Answer 6

• 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)

Question 7

softwood

uses of timber

Answer 7

• 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)