For the following questions answer them individually
In the following passage, some words have been deleted. Select the most appropriate option to fill in each blank.
Pollution is destroying nature. The smoke that is (1) ______ from the chimneys of the factories, and from vehicles is the mixture of poisonous gases. Due to environmental pollution, there is (2) ______ in nature, so, many birds, animals, and plants are on the verge of (3) ______ day by day. The only way to (4) ______ environmental pollution is to plant many trees. By planting trees, we can get rid of many harmful poisonous gases. It is the responsibility of everyone to (5) ______ and protect our environment.