Flashcard: 2024 Bio Climate Change Causes & Effects

Front

What is albedo?

Back

Albedo is the measure of how much light that hits a surface is reflected without being absorbed. It is expressed as a percentage.

Front

Which surface has the highest albedo?

Back

Ice and snow have the highest albedo, reflecting most of the sunlight that hits them.

Front

What is the relationship between carbon dioxide levels and climate change?

Back

Increased levels of carbon dioxide in the atmosphere contribute to the greenhouse effect, leading to global warming and climate change.

Front

What is a positive feedback loop in the context of climate change?

Back

A positive feedback loop amplifies changes; for example, melting ice reduces albedo, leading to more heat absorption and further ice melting.

Front

How do trees contribute to reducing carbon dioxide in the atmosphere?

Back

Trees absorb carbon dioxide during photosynthesis, helping to mitigate climate change.

Front

What are fossil fuels?

Back

Fossil fuels are natural substances formed from the remains of ancient plants and animals, used as energy sources (e.g., coal, oil, natural gas).

Front

What is the greenhouse effect?

Back

The greenhouse effect is the warming of Earth's surface due to the trapping of heat by greenhouse gases in the atmosphere.

Front

What role do oceans play in climate change?

Back

Oceans absorb a significant amount of carbon dioxide and heat, influencing global climate patterns.

Front

What is the impact of deforestation on climate change?

Back

Deforestation increases carbon dioxide levels in the atmosphere, as fewer trees are available to absorb CO2.

Front

What is the significance of the carbon cycle?

Back

The carbon cycle describes the movement of carbon among the atmosphere, oceans, soil, and living organisms, crucial for maintaining Earth's climate.