List a few examples of each type of resource: Physical:
Marine energy:
Biological:
Non-extractive

Physical - Machinery and equipment, Buildings and office spaces, Vehicles and trucks

Marine Energy - wave,ocean thermal, ocean current, run-of-river, and salinity

Biological - cultivated plants, pollinators, pests, and pest predators

Non-extractive - recreation,Transportion & waste disposal

HOPE IT HELPS!!

your answer is "the 1950's"

substitution is the answer in this case