Questions and Answers
How do animals get nitrogen?
They eat it in plants and other animals.
Which of Earth's spheres should a student study to learn how plants and animals interact with one another in an ocean habitat?
the biosphere
What is the sphere that refers to Earth's water?
hydrosphere
What protects Earth's surface?
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Why are bacteria needed in the nitrogen cycle?
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Why is the carbon cycle important to plants?
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Which of Earth's spheres does a scientist focus on when investigating how the amount of available water affects plant growth in a rainforest?
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Which process can help counteract human interactions that affect the carbon cycle?
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Which statements describe characteristics of Earth's geosphere? (Select all that apply)
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What is one negative effect of human influence on cycles of matter?
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Study Notes
Nitrogen Cycle
- Animals obtain nitrogen by consuming plants and other animals.
- Bacteria play a crucial role in the nitrogen cycle, as they convert atmospheric nitrogen into a form usable by living organisms.
Earth's Spheres
- The biosphere encompasses all living organisms and their interactions, particularly important for studying ocean habitats.
- The hydrosphere refers to all water on Earth, vital for understanding water's role in ecosystems.
- The atmosphere acts as a protective layer for Earth's surface, influencing weather and climate.
Carbon Cycle
- The carbon cycle is critical for plants, as they utilize carbon dioxide from the atmosphere to produce glucose through photosynthesis.
- Human activities, such as fossil fuel use and deforestation, impact the carbon cycle, leading to environmental changes.
Interaction of Earth's Spheres
- Investigations into how water availability affects plant growth focus on the hydrosphere and biosphere, illustrating their interconnectivity.
Human Impact on Earth's Cycles
- Negative human influences on matter cycles include reduced soil nitrogen levels from crop harvesting.
- Photosynthesis is a natural process that can help mitigate the effects of human activities on the carbon cycle.
Characteristics of the Geosphere
- The geosphere consists mainly of solid matter, including the Earth's surface and interior, providing a foundation for other spheres to interact.
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Description
Explore the essential cycles of matter with these flashcards. Learn how nitrogen is obtained by animals and understand the interactions between different spheres of Earth. Perfect for students studying ecosystems and ecological relationships.
