Unit 9 Test

Front

What is climate change?

Back

Climate change refers to significant changes in global temperatures and weather patterns over time, primarily caused by human activities such as burning fossil fuels.

Front

What are the effects of climate change on ecosystems?

Back

Climate change can lead to habitat loss, altered species distributions, and increased frequency of extreme weather events, affecting biodiversity.

Front

What is a drought?

Back

A drought is a prolonged period of abnormally low rainfall, leading to water shortages and negative impacts on agriculture and ecosystems.

Front

What are coral reefs?

Back

Coral reefs are underwater structures made from calcium carbonate secreted by corals, providing habitat for diverse marine life.

Front

What is the significance of algae in marine ecosystems?

Back

Algae are crucial for marine ecosystems as they produce oxygen through photosynthesis and serve as a primary food source for many marine organisms.

Front

What is a dead zone in the ocean?

Back

A dead zone is an area in the ocean with low oxygen levels, often caused by nutrient pollution, leading to the death of marine life.

Front

What percentage of global carbon emissions come from cities?

Back

75% of global carbon emissions are attributed to cities due to high energy consumption and transportation.

Front

How does increased water temperature affect coral?

Back

Increased water temperatures can cause coral to expel their symbiotic algae, leading to coral bleaching and potential death.

Front

What is the greenhouse effect?

Back

The greenhouse effect is the warming of Earth's surface due to the trapping of heat by greenhouse gases in the atmosphere.

Front

What are greenhouse gases?

Back

Greenhouse gases are gases that trap heat in the atmosphere, including carbon dioxide (CO2), methane (CH4), and nitrous oxide (N2O).