11. Short answer questions II

1. What are the environmental effect caused by sewage?

 

a. Untreated sewage or wastewater generated from domestic and industrial processes is the leading polluter of water resources in India. TrueFalse

 

b. Different species of fishes are killed when untreated sewage or wastewater generated from domestic and industrial processes is released into aquatic habitat.  TrueFalse

 

c. Contaminated water can cause diseases such as E.coli, diarrhoea and hepatitis A. FalseTrue

 

2. What are the consequences of deforestation?

 

a. Deforestation results in drought, floods, soil erosion. TrueFalse

 

b. Deforestation causes loss of species of plants, animals, and few are on the verge of extinction. FalseTrue

 

c. Deforestation causes extinction of species, imbalance of biogeochemical cycles, alteration of climatic conditions. FalseTrue

 

d. The process where fertile land becomes a desert is called desertificationdeforestation.