Environmental Science MCQs - Complete Course
Water Pollution: Environmental Science MCQs App Download & e-Book - 182
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MCQ: 182
Which is the chief source of nitrogenous matter urea ?
- Phosphorous
- Protein
- Calcium
- Nutrient
b
More MCQs from Environmental Science Textbook
Structure and Function of Ecosystem Test 193
Major Ecosystems Test 194
Biosphere Test 195
Water Pollution Test 196
Energy Flow in Ecosystem Test 197
Hydrosphere Test 198
Water Pollution Test 199
Lithosphere Test 200
Ozone Depletion Test 201
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