Questions and Answers
Define environment.
Environment is our basic life support system. It provides the air we breathe, the water we drink, the food we eat, and the land where we live.
Which of the following are examples of creations made by people?
The lithosphere is made up of rocks and minerals.
True
What domain provides us forests, grasslands, land for agriculture, and human settlements?
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The domain of water is referred to as _______________.
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Match the following domains of the environment with their descriptions:
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What is an ecosystem?
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What do you mean by natural environment?
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Which are the major components of the environment?
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Give four examples of human-made environment.
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What is the lithosphere?
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Which are the two major components of the biotic environment?
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What is the biosphere?
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Which is not a natural ecosystem?
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Which is not a component of the human environment?
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Which is a human-made environment?
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Which is a threat to the environment?
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Match the following components of the environment:
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Give a reason why man modifies his environment.
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Why do plants and animals depend on each other?
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Imagine an ideal environment where you would love to live. Describe your ideal environment.
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Study Notes
Environment
- Environment refers to the surroundings or conditions in which a person, animal, or plant lives or operates.
- It includes both natural and human-made components.
Natural Environment
- The natural environment refers to both living (biotic) and non-living (abiotic) components.
- It includes:
- Land (lithosphere)
- Water (hydrosphere)
- Air (atmosphere)
- Plants and animals (biosphere)
Human Environment
- Human environment refers to human creations, interactions, and activities that affect the natural environment.
- It includes:
- Buildings
- Roads
- Factories
- Cars
- Human settlements
- Agriculture
- Industries
Ecosystem
- An ecosystem is a system formed by the interaction of all living organisms with each other and their physical and chemical environment.
- It includes:
- Plants
- Animals
- Soil
- Water
- Air
- Sunlight
- Nutrients
- Decomposers
Components of Environment
- The environment has four main components:
- Lithosphere (solid crust of the earth)
- Hydrosphere (water bodies)
- Atmosphere (air surrounding the earth)
- Biosphere (living organisms)
Importance of Environment
- Environment provides:
- Air to breathe
- Water to drink
- Food to eat
- Land to live on
- Natural resources
Human Impact on Environment
- Human activities can modify and even destroy natural surroundings.
- Humans have increasing needs, which lead to changes in the environment.
- It is essential to maintain a balance between natural and human environments.
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Description
Ravi returns to school after a long vacation to find his favorite playground being demolished for a new building. He shares his concerns with classmates and the Principal about the loss of their natural environment.