Exploring Earth's Systems and Sustainability

Which of the following is considered a renewable energy source?

• Coal

• Solar

• Natural Gas

• Oil

What is the main process by which plants convert sunlight into chemical energy?

• Respiration

• Photosynthesis

• Fermentation

• Decomposition

Which of the following is NOT one of Earth's four main spheres?

• Atmosphere

• Hydrosphere

• Lithosphere

• Technosphere

What is the primary gas released during cellular respiration?

• Oxygen

• Carbon dioxide

• Nitrogen

• Hydrogen

Which of the following best describes a food web?

• A single path of energy flow in an ecosystem

• A network of interconnected food chains

• The process of photosynthesis

• The movement of water through the environment

Which cycle involves the movement of water between the atmosphere, land, and oceans?

• Carbon cycle

• Nitrogen cycle

• Water cycle

• Phosphorus cycle

Which of the following actions would most effectively reduce your carbon footprint?

• Using plastic bags

• Driving a gasoline car

• Riding a bicycle

• Eating more meat

Why is energy transfer between trophic levels in a food chain inefficient?

• Energy is created at each level

• Most energy is lost as heat

• All energy is transferred to the next level

• Energy is destroyed

Which resource is considered nonrenewable?

• Wind

• Solar

• Coal

• Geothermal

Which process removes carbon dioxide from the atmosphere?

• Combustion

• Photosynthesis

• Respiration

• Decomposition