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LAND POLLUTION
occurs when harmful substances like plastic,
chemicals, and waste degrade the land, making it
unsuitable for living and growing plants.
TYPES OF
POLLUTION
AIR POLLUTION
Chemicals are released into the air through harmful
gases, burning of fuel and other human activities.
GLOBAL WARMING
Global warming is the gradual increase in Earth's
temperature caused by human activities releasing
greenhouse gases like carbon dioxide.
ACID RAIN
Acid rain forms when pollutants from burning fossil
fuels mix with water vapor, causing rain to become
acidic and harmful to the environment.
WATER POLLUTION
Toxins and chemicals from human and industrial
waste are introduced into the Earth's water supplies.

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FAQs on Poster: Our Enviroment - Science for Class 4

1. What are the main causes of environmental degradation?

Ans.Environmental degradation is primarily caused by human activities such as deforestation, pollution, overfishing, and industrialization. These activities lead to habitat destruction, loss of biodiversity, and increased greenhouse gas emissions, which contribute to climate change.

2. How can individuals contribute to protecting the environment?

Ans.Individuals can protect the environment by adopting sustainable practices like reducing waste, recycling, conserving water, using energy-efficient appliances, and supporting local and eco-friendly products. Additionally, participating in community clean-up events and advocating for environmental policies can make a significant impact.

3. What are the effects of climate change on the environment?

Ans.Climate change has numerous detrimental effects on the environment, including rising sea levels, increased frequency and intensity of extreme weather events, loss of biodiversity, and disruption of ecosystems. It also affects agriculture, water resources, and human health, leading to food insecurity and displacement.

4. Why is biodiversity important for the environment?

Ans.Biodiversity is crucial for maintaining ecosystem balance and resilience. It supports ecosystem services such as pollination, nutrient cycling, and water purification. A diverse range of species also enhances food security and offers potential resources for medicine and agriculture.

5. What role do governments play in environmental protection?

Ans.Governments play a vital role in environmental protection by enacting and enforcing laws and regulations that limit pollution, protect natural resources, and promote sustainable development. They also invest in research and development for clean technologies and work with international organizations to address global environmental issues.

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Oct 01, 2025 Last updated

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Document Description: Poster: Our Enviroment for Class 4 2025 is part of Science for Class 4 preparation. The notes and questions for Poster: Our Enviroment have been prepared according to the Class 4 exam syllabus. Information about Poster: Our Enviroment covers topics like and Poster: Our Enviroment Example, for Class 4 2025 Exam. Find important definitions, questions, notes, meanings, examples, exercises and tests below for Poster: Our Enviroment.

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