Feedback Loops, Earth's Spheres and Biogeochemical Cycles

Front

What is the biosphere?

Back

The biosphere is the sphere of Earth that includes all living organisms, including plants, animals, and microorganisms.

Front

What is the most abundant gas in the atmosphere?

Back

Nitrogen is the most abundant gas in the atmosphere, making up about 78% of the air we breathe.

Front

What happens in a body temperature feedback loop if cooling mechanisms are not activated?

Back

If cooling mechanisms are not activated, the body would not cool down, leading to potential overheating.

Front

What are fossil fuels?

Back

Fossil fuels are natural substances formed from the remains of ancient plants and animals, including coal, natural gas, and oil.

Front

What is the atmosphere?

Back

The atmosphere is the layer of gases surrounding the Earth, essential for life and weather.

Front

Define the hydrosphere.

Back

The hydrosphere encompasses all water on Earth, including oceans, rivers, lakes, and water vapor in the atmosphere.

Front

What is the geosphere?

Back

The geosphere refers to the solid parts of the Earth, including rocks, soil, and the Earth's interior.

Front

Explain the carbon cycle.

Back

The carbon cycle is the process by which carbon is exchanged among the atmosphere, oceans, soil, and living organisms.

Front

What role do plants play in the carbon cycle?

Back

Plants absorb carbon dioxide from the atmosphere during photosynthesis, converting it into organic matter.

Front

What is a feedback loop?

Back

A feedback loop is a system where the output of a process influences its own input, often regulating systems in nature.