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Category:1931 in the environment

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Subcategories

This category has the following 7 subcategories, out of 7 total.

M

1931 meteorology (3 P)

N

1931 natural disasters (2 C, 4 P)
Non-renewable resource companies established in 1931 (5 P)

P

Protected areas disestablished in 1931 (1 P)
Protected areas established in 1931 (60 P)

R

Renewable resource companies established in 1931 (1 P)

S

Species described in 1931 (5 C, 4 P)

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