Match each effect to the phenomenon that caused it.
1) Snails and mussels get endangered.
2) Dry climates become drier.
3) Crustaceans become rare.
4) Sea levels increase.
5) The number of birds laying defective eggs increases.

Pairs
A) Ocean acidification
B) Desertification
C) Overfishing
D) Global warming
E) Pesticide exposure