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What is the current state of the ozone layer?
V&V Books Vicens Vives Organización
- 248 visitas
The ozone layer sits in the stratosphere between 15 km and 30 km above the earth and shields us and other living things from the sun?s harmful ultraviolet radiation. Ozone layer depletion could have…
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Animal nutrition
EduBook Organización
- 14018 visitas
Animals are heterotrophic organisms; they cannot make the organic material they need to eat. They can get organic material from other animals and from plants. Plants are the only living things that can…
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Plant reproduction
EduBook Organización
- 2 lo usan
- 12143 visitas
Living things can reproduce. They use one or several of their cells to make organisms similar to themselves. There are two types of reproduction in plants and animals: asexual reproduction and…
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Nature 1. Natural Sciences
EduBook Organización
- 2 lo usan
- 7723 visitas
1. Matter and Materials 2. Matter: Mass, Volume and Density 3. The Universe and our Solar System 4. The Earth and the Moon G. Glossary 5. The Atmosphere 6. The Hydrosphere 7. The Earth's Crust 8. The…
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Plant nutrition
EduBook Organización
- 2 lo usan
- 11248 visitas
All living things need to carry out their vital functions. To do this, they need food and energy. Unlike animals, plants make their own food. They need very simple substances like water and mineral…
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Before you start - Plant nutrition
EduBook Organización
- 8631 visitas
All living things need to carry out their vital functions. To do this, they need food and energy. Unlike animals, plants make their own food. They need very simple substances like water and mineral…
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Introduction - Plant nutrition
EduBook Organización
- 8197 visitas
All living things need to carry out their vital functions. To do this, they need food and energy. Unlike animals, plants make their own food. They need very simple substances like water and mineral…
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Air humidity and precipitation
EduBook Organización
- 7512 visitas
3.1. Air humidity Humidity is the amount of water vapour in the air. The water vapour comes from seas and oceans, rivers, lakes, plants and other living things. The amount of water vapour that the air…
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Before you start - Animal nutrition
EduBook Organización
- 7244 visitas
Animals are heterotrophic organisms; they cannot make the organic material they need to eat. They can get organic material from other animals and from plants. Plants are the only living things that can…
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Introduction - Plant reproduction
EduBook Organización
- 6909 visitas
Living things can reproduce. They use one or several of their cells to make organisms similar to themselves. There are two types of reproduction in plants and animals: asexual reproduction and…
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