Exploring the Causes and Effects of Climate Change

Climate change is a pressing issue characterized by a rapid increase in Earth's temperature, largely due to human activities like burning fossil fuels. This has led to significant impacts on oceans, including temperature rise and acidification, affecting marine life and food sources. Sea levels are rising due to melting ice, causing flooding in coastal areas. Extreme weather events are becoming more frequent. Individuals can help mitigate climate change by adopting sustainable practices such as recycling, using public transport, and reducing meat consumption.

What is the primary cause of the recent abrupt increase in Earth's temperature?

• Solar flares

• Volcanic eruptions

• Natural variations in Earth's orbit

• Human activities

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What percentage of climate scientists agree that recent climate changes are likely due to human activities?

• 85%

• 65%

• 75%

• 97%

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Which gas is naturally occurring but becomes harmful in excess due to human activities?

• Oxygen

• Carbon dioxide

• Argon

• Nitrogen

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Since when has ocean surface acidification increased by 30%?

• Since the late 17th century

• Since the early 19th century

• Since the late 18th century

• Since the mid-20th century

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What is a direct consequence of increased dissolved CO2 in ocean waters?

• Increased salt content

• Enhanced marine biodiversity

• Ocean acidification

• Decreased fish populations

How much have sea levels risen in the last century?

• 6.7 inches

• 5.5 inches

• 7.2 inches

• 8.0 inches

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What is a major effect of glaciers melting at an accelerated rate?

• Increased land area

• Decreased ocean salinity

• Rising sea levels

• Lower atmospheric temperatures

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Which action can individuals take to help combat climate change?

• Reduce public transportation usage

• Recycle and reuse more materials

• Use more plastic products

• Increase consumption of fossil fuels

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Why is it important to eat more locally grown foods in the context of climate change?

• To reduce transportation emissions

• To increase global trade

• To support local economies

• To enhance food flavors

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What is the main takeaway about climate change from the video?

• It is irreversible and cannot be mitigated

• It is real and we can help mitigate it

• It only affects polar regions

• It is a natural cycle of the Earth

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