E. Climate Change & Ecological Footprint Question

Fill in the blank: In 1885, coal surpassed ______ as a primary energy source.

• A) Oil

• B) Wood

• C) Natural Gas

• D) Nuclear

Which energy source had the lowest percentage of total energy consumption in 2023?

• Coal

• Nuclear

• Renewables

• Natural Gas

Based on the data in Figures 1 and 2, which of the following best explains the relationship between fossil fuel consumption and carbon dioxide (CO2) emissions?

• Fossil fuel consumption has no effect on CO2 emissions.

• Increased fossil fuel consumption directly leads to higher CO2 emissions, which contribute to the warming of Earth’s atmosphere.

• CO2 emissions decrease as fossil fuel use increases due to advances in technology.

• Fossil fuel use has remained constant over the past century, so CO2 levels have not changed.

What is the source of the graph showing the average global sea surface temperature?

• NASA

• NOAA

• EPA

• USGS

What is the main cause of coral bleaching as mentioned in the reading?

• Pollution

• Overfishing

• Rising ocean temperatures

• Excessive sunlight

Fill in the blank: The carbon dioxide levels in Hawaii from 1983 to 2022 showed a _______ trend.

• Decreasing

• Increasing

• Stable

• Fluctuating

According to Data Table 2, which location experienced coral bleaching events in 1980?

• Indian Ocean

• Great Barrier Reef

• Red Sea

• Southeast Asia

Which color on the map indicates 100% coral bleaching?

• Blue

• Green

• Yellow

• Red

What was the regional sea surface temperature range in 1980 according to Data Table 2?

• 80-84°F

• 82-86°F

• 84-88°F

• 85-90°F

Explain how the rise in CO2 levels in the atmosphere has affected both the temperature of the oceans and the health of coral reefs. Use data from Data Table 2 and Figure 6 to support your explanation. (Choose two correct answers)

• The rise in atmospheric CO₂ levels has caused the oceans to absorb more CO₂, leading to ocean acidification and a reduction in the pH of seawater. This weakens coral skeletons and disrupts marine ecosystems. Additionally, the increase in CO₂ has contributed to global warming, raising ocean temperatures.

• The declining in atmospheric CO₂ levels has caused the oceans to absorb more CO₂, leading to ocean acidification and a reduction in the pH of seawater. This weakens coral skeletons and disrupts marine ecosystems. Additionally, the increase in CO₂ has contributed to global warming, raising ocean temperatures.

• As sea surface temperatures have risen from 82-86°F in 1980 to 85-90°F in 2020, coral bleaching events have increased from 3 major events to 12 major events. Coral reefs are highly sensitive to temperature changes, and when the water becomes too warm, they expel their symbiotic algae, leading to bleaching and eventual coral death if the temperature remains high for too long.

• As sea surface temperatures have risen from 82-86°F in 1980 to 85-90°F in 2020, coral bleaching events have decreased from 3 major events to 12 major events. Coral reefs are highly sensitive to temperature changes, and when the water becomes too warm, they expel their symbiotic algae, leading to bleaching and eventual coral death if the temperature remains high for too long.