1. Drawings
450 seconds
Draw a water cycle
2. Poll
60 seconds
What is the main source of nitrogen for most living things?
- Soil
- Sunlight
- Water
- Air
3. Poll
60 seconds
What process do bacteria use to convert atmospheric nitrogen into a form that plants can use?
- Photosynthesis
- Nitrogen fixation
- Respiration
4. Poll
60 seconds
Which type of organisms release ammonia into the soil as waste?
- Animals
- Plants
- Fungi
Made with ❤️ from Norway