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Environmental Issues
Q. Pollution is any undesirable change in physical, chemical and biological characteristics of. (Solved)
1. Land
2. Soil
3. Air and Water
4. All of these
d. All of these
Related Topics
→ Neural Control and Coordination in Animals
→ Respiration
→ Breathing and Exchange of gases
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→ Reproductive Health
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→ Human Reproduction
→ Pharmacology
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