Select the most appropriate option to fill in blank number 4.
5In the following passage, some words have been deleted. Read the passage carefully and select the most appropriate option to fill in each blank.
Everything (1) _________ us makes our environment. Living and non-living things form the (2) _________ of our surroundings. Plants, animals and microbes are parts of our environment. Humans have affected the environment in multiple (3) ______ like clearing of forests, building houses and farms, making roads, etc. This is the root (4) _______ of air, water and land pollution on the planet. Ecologists across the globe are making efforts to educate mankind about the (5) _________ of nature, the crisis we face and the methods of managing these crises.
Q:
Select the most appropriate option to fill in blank number 4.
- 1motivefalse
- 2originfalse
- 3sourcefalse
- 4causetrue
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