Question

note on how you will remember each. one term has been done for you.
term definition
even - aged
uneven - aged forest regrowth in which the trees are different ages; occurs after selective logging i imagine the trees \standing up\ unevenly, at all different heights because they are at different ages.
clear - cutting
seed - tree approach
shelterwood approach
selection system
deforestation
old - growth forest
forest resources

Explanation:

Even - aged: Forest regrowth where trees are of similar ages. I'll think of a uniform forest of same - aged trees.
Clear - cutting: Removing all trees in an area. Picture a completely bare area after all trees are cut.
Seed - tree approach: Leaving some trees to provide seeds for regrowth. Visualize a few tall trees left among a cut area to spread seeds.
Shelterwood approach: Removing trees in stages to allow new growth under the shelter of remaining trees. Imagine trees being cut gradually with some left to protect new seedlings.
Selection system: Selectively harvesting individual trees or small groups. Think of picking out specific trees for cutting.
Deforestation: Permanent removal of forest cover for other uses. Envision a forest being turned into farmland or a city.
Old - growth forest: A forest that has not been significantly disturbed for a long time. Picture a dense, untouched forest with large, ancient trees.

Answer:

Term	Definition	Note on How to Remember
Clear - cutting	Removing all trees in an area	Picture a completely bare area after all trees are cut
Seed - tree approach	Leaving some trees to provide seeds for regrowth	Visualize a few tall trees left among a cut area to spread seeds
Shelterwood approach	Removing trees in stages to allow new growth under the shelter of remaining trees	Imagine trees being cut gradually with some left to protect new seedlings
Selection system	Selectively harvesting individual trees or small groups	Think of picking out specific trees for cutting
Deforestation	Permanent removal of forest cover for other uses	Envision a forest being turned into farmland or a city
Old - growth forest	A forest that has not been significantly disturbed for a long time	Picture a dense, untouched forest with large, ancient trees