WEBVTT

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Mountains, rivers, and deserts.

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These are some of Earth's most diverse landscapes.

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Each has unique features that shape the plants, animals, and people living there.

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What is an ecosystem?

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An ecosystem is a community of living things, like plants and animals,

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interacting with their environment, such as air, water, and soil.

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Each ecosystem is unique and shaped by its physical features.

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Characteristics of mountains, rivers, and deserts, and how do they differ?

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Mountains are tall, rocky, and cool, with forests and animals like mountain goats.

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Rivers are flowing waters that bring fresh water and support plants, animals, and people.

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Deserts are dry, sandy, and extreme, with hot days, cold nights, and life like cacti and camels.

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Mountains are cold and steep.

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Rivers are wet and flowing, while deserts are dry and open.

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Each one has very different weather and resources.

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How do people adapt and how do physical features influence us?

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In mountains, people build sturdy homes and wear warm clothes.

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Farmers grow crops like potatoes on terraced land.

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Near rivers, people build villages and use the water for farming, fishing, and transport.

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In deserts, people dig wells for water, wear light clothing, and sometimes rely on animals like camels for travel.

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Physical features shape where people live and work, with mountains attracting miners,

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rivers supporting farmers and fishermen, and deserts requiring resourceful adaptation.

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Mountains, rivers, and deserts shape both nature and human life.

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These environments have played a key role in how people live and interact with the world.