Climate Change and Its Impacts

How much has carbon dioxide in the atmosphere increased in the last 60 years compared to ever before?

• 10 times faster

• 50 times faster

• 100 times faster

• 200 times faster

How does the current rate of Earth's climate change compare to its past?

• It is changing at a slower rate than ever before.

• It is changing at a similar rate to past fluctuations.

• It is changing faster than ever before.

• It is not changing significantly.

What did Eunice Foote's experiments in the 1850s reveal about "carbonic acid gas"?

• It cools the air down faster.

• It has no effect on air temperature.

• It makes the air heat up faster and stay warmer for longer.

• It causes the air to become denser.

What happens to heat energy reflected from Earth's surface in the presence of greenhouse gases?

• It escapes into space without interaction.

• It is absorbed by the atmosphere and bounces back towards Earth's surface.

• It is immediately absorbed by the sun.

• It causes the atmosphere to become transparent to heat.

What valuable information do ice cores from places like Greenland and Antarctic ice caps provide to scientists?

• They show the history of ocean currents.

• They contain preserved bubbles of ancient atmospheric composition.

• They reveal the movement of tectonic plates.

• They indicate the depth of ancient oceans.

What are some proposed causes for the "Snowball Earth" periods?

• Volcanic ash blocking the sun and a drop in carbon levels.

• Increased solar radiation and asteroid impacts.

• Rapid increase in oxygen and formation of new continents.

• Ocean acidification and widespread deforestation.

What were the average global temperatures approximately 56 million years ago?

• Around 0°C (32°F)

• Around 10°C (50°F)

• Around 23°C (73.4°F)

• Around 40°C (104°F)

How much faster has the global temperature increased in the last 100 years compared to the warming rate after previous Ice Ages?

• About 2 times faster

• About 5 times faster

• About 10 times faster

• About 20 times faster

What major human activity is primarily responsible for the rapid increase in global temperatures over the last 200 years?

• Large-scale deforestation

• Industrial Revolution and burning of fossil fuels

• Increased volcanic activity

• Changes in Earth's orbit

What is the main difference between weather and climate?

• Weather refers to long-term atmospheric conditions, while climate is short-term.

• Weather is what you experience daily, while climate refers to multi-decade, broad-scale trends.

• Weather is predictable, while climate is unpredictable.

• Weather is influenced by human activity, while climate is purely natural.