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Solution


Q.

Read the passage given below and answer the following questions from (i) to (v):

Humans modify the environment around them through agriculture and urbanisation as the major activities. Human impact on the environment is so substantial that there is nothing left called pristine nature or ecosystems untouched by human intervention. The major impact of these interventions is ever increasing levels of all forms of pollution on our Earth. Waste disposal and depletion of ozone layer are two major concerns in this world.

 

(i) Which one of the following sentences is not true about ozone
1 Ozone is deadly poisonous.  
2 Ozone protects us from harmful UV rays emitted by the sun.  
3 Ozone is formed from oxygen in presence of UV rays.  
4 Ozone causes skin cancer in humans.  

Ans.

(2)