Earth's Changing climate

Front

What happens to the amount of energy absorbed by Earth’s surface when carbon dioxide levels increase?

Back

It increases

Front

Global temperature trend from 1880 to 2011?

Back

Temperatures steadily increased

Front

What is a major human cause of the increase in atmospheric carbon dioxide?

Back

More burning of fossil fuels

Front

Which type of evidence is least effective to show climate change is affecting ice cover? Options: Glacier size data over 75 years, Carbon dioxide levels over 100 years, Surface temperature data over 200 years, Snowfall amount over 50 years

Back

Snowfall amount over 50 years

Front

Which human activity contributes most to methane emissions?

Back

Raising livestock

Front

How does deforestation affect the amount of carbon dioxide in the atmosphere?

Back

Increases it

Front

Which energy source releases the most carbon dioxide? Options: Coal, Solar, Wind, Nuclear

Back

Coal

Front

Explain why scientists use computer simulations to study climate change.

Back

To visualize complex data

Front

What is one reason satellites are important for weather forecasting?

Back

They collect atmospheric data

Front

If volcanic eruptions release carbon dioxide, why is human activity considered the main cause of recent increases in atmospheric CO₂?

Back

Human activity releases more CO₂