Climate Change

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

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

• 85%

• 65%

• 75%

• 97%

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

• Oxygen

• Carbon dioxide

• Argon

• Nitrogen

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

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

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

• Increased land area

• Decreased ocean salinity

• Rising sea levels

• Lower atmospheric temperatures

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

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

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