(S ? Q) • (?W ? ?C) $\frac { \sim \mathrm { W } \vee \mathrm { S } } { \mathrm { Q } \vee \sim \mathrm { C } }$

question 76

Multiple Choice

(S ? Q) • (?W ? ?C) $\frac { \sim \mathrm { W } \vee \mathrm { S } } { \mathrm { Q } \vee \sim \mathrm { C } }$

• A) MP-valid.
• B) Invalid.
• C) DD-valid.
• D) CD-valid.
• E) DD-invalid.

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Definitions:

Salt Water Intrusion

The movement of saline water into freshwater aquifers, which can lead to the contamination of drinking water sources and agricultural irrigation supplies.

Acidification

The process of becoming more acidic, often referred to in the context of soil, water bodies, or the ocean's pH levels decreasing.

Desertification

The degradation of once-fertile land into nonproductive desert; caused partly by soil erosion, deforestation, and overgrazing by domestic animals.

Deserts

Arid regions with extremely low rainfall, supporting limited plant and animal life, and characterized by harsh conditions such as high temperatures and low humidity.