Answer:
Global warming, pollution and deforestation responsible for the change that occurs in our environment.
Step-by-step explanation:
Changes like global warming, pollution and deforestation that occurs in the environment today. All these changes occurs because of human activities. Greenhouse gases release in the atmosphere from burning of fossil fuels which increases the temperature and cause global warming. Trees helps in cleaning our environment. they releases oxygen which is used for respiration by animals. They absorb carbondioxide gas and make food for organisms. Cutting of trees for wood used in furniture and as a fuel. Pollution has adverse affect on the environment. Industrial waste and gases pollute our water as well as air. Use of chemicals for pests also pollute our water bodies.