food products
A sports announcer
soil
A classroom
design and development of boats
engines
airplanes
aquaculture
building codes
plastics
A symphony organizer
processing of raw materials
small appliances
earth related power sources
design and development of submarines
water
volume
animals
A preacher
discovery of raw materials
petroleum products
ecosystem
cultural factors
extraction of raw materials
zoning laws
safety of people
population
sound
food processing
pharmaceuticals
artificial limbs
automobiles
design and development of ships
detergents
geothermal plants
hydroelectric dams
HVAC systems
paints
cell phones
