Consider the following statements about the anthropogenic factors about the degradation of environment and select the correct answer using the code given below: 1. Man is destroying natural vegetation. 2. Man introduced exotic plants damaging the flora 3. Soil pollution is caused by chemical fertilizers and insecticides and pesticides. 4. Cloud seeding is a method for inducing precipitation.

• A. 1, 2 and 3 are correct    
• B. 1, 3 and 4 are correct
• C. 2, 3 and 4 are correct     
• D. 1, 2, 3 and 4 are correct