Ecosystems provide us with clean air, water and food. Also, provide humans with fertile soil that is full of mineral nutrients that is need to make crops.
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What does sustainability mean?
Sustainability means meeting the need of today’s population without harming the environment so that future generations can still meet their own needs.
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Why is sunlight a sustainable source of energy?
Because it can’t be used up by human activities
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In an ecosystem how is sunlight used as a sustainable energy source?
Sunlight used to make food by photosynthesis. The sunlight energy is initially stored in form of carbohydrates. Then, transferred between organisms when they’re eaten.
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What is sustainable agriculture?
Meeting the food needs of today’s population without preventing future generations from meeting their own food needs.
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How can sunlight be used in sustainable agriculture?
Heating and lighting systems in greenhouse and irrigation systems.
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How may conserving natural ecosystems sometimes conflicts with community need?
A community may need to cause damage to ecosystem to get resources they need. For example, population growth in areas means more people need to be fed.
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Other cards in this set
Card 2
Front
What does sustainability mean?
Back
Sustainability means meeting the need of today’s population without harming the environment so that future generations can still meet their own needs.
Card 3
Front
Why is sunlight a sustainable source of energy?
Back
Card 4
Front
In an ecosystem how is sunlight used as a sustainable energy source?
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