Study Guide: Earth Spheres

What are the 4 spheres of the earth?

• Biosphere

• Geosphere

• Hydrosphere

• Atmosphere

• Cryosphere

What is Ecology?

• Study of how life interacts with each other and environment

• Ecology is the investigation of celestial bodies' impact on Earth's ecosystems.

• Ecology is the application of etiquette to ecosystems in diverse geographical regions.

• Ecology is a culinary approach entailing the incorporation of marine life into Earth's ecosystems.

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What are biotic and abiotic factors?​ ​

• Living things in nature, like trees, animals, and clouds.

• Things like temperature and soil type affect how the ground looks and what can grow there.

• Things that are not alive, such as rocks, air, and colors in the sky.

• The air around us (atmosphere) helps us breathe, and it shields us from the sun's harmful rays.

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What is the role of decomposers in an ecosystem?

• They break down dead organisms and waste materials, returning nutrients to the soil.

• They produce food for other organisms through photosynthesis.

• They consume other organisms for energy.

• They regulate the temperature of the ecosystem.

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What is a food chain?

• A sequence of organisms that eat each other in an ecosystem.

• A chain made of food items.

• A process of producing food.

• A type of ecosystem.

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What is a habitat?

• The natural home or environment of an organism.

• A type of ecosystem.

• A process in the life cycle of an organism.

• The food that an organism eats.

What is an ecosystem?

• A community of living organisms in conjunction with the nonliving components of their environment.

• A type of habitat.

• A process in the life cycle of an organism.

• The food that an organism eats.

What is biodiversity?

• The variety of life in the world or in a particular habitat or ecosystem.

• A type of ecosystem.

• A process of producing food.

• A sequence of organisms that eat each other in an ecosystem.

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What is the role of producers in an ecosystem?

• They produce food for other organisms through photosynthesis.

• They break down dead organisms and waste materials, returning nutrients to the soil.

• They consume other organisms for energy.

• They regulate the temperature of the ecosystem.

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What is a food web?

• A complex network of interconnected food chains in an ecosystem.

• A web made of food items.

• A process of producing food.

• A type of ecosystem.

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