Today in our daily life we have some important need which need to full file 
our first need is house to live 
so if we see that the population of world increases day by day 
so for living in these big world we cut up the 
forest which led to deforestation and due to this the life of 
people and animals are in danger 
because we people take away the lively hood of the animals 
and this animals don't have shelter to live 

this result the number of trees are less and ultimately 
this will reduces the amount of OXYGEN and we all so start having death 

so at last i want to end my speech by saying that we should 
Thank you .