Q2 Unit Test 4-Impact of Human Activities on Earth

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What is climate change?

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

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What are polar ice caps?

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Polar ice caps are large areas of ice located at the poles of the Earth, primarily in Antarctica and the Arctic, that play a crucial role in regulating the planet's climate.

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What is the impact of climate change on polar ice caps?

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The impact of climate change on polar ice caps includes melting and reduction of ice, leading to rising sea levels and loss of habitat for polar species.

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What is air pollution?

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Air pollution is the presence of harmful substances in the air we breathe, which can come from various sources including vehicles, industries, and natural events.

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How does air pollution affect human health?

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Air pollution can lead to increased risk of respiratory diseases, cardiovascular problems, and other health issues due to inhalation of toxic particles.

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What is habitat fragmentation?

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Habitat fragmentation is the process by which large, continuous habitats are divided into smaller, isolated patches, often due to human activities like urban development.

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What are the consequences of habitat fragmentation?

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Consequences of habitat fragmentation include loss of biodiversity, disruption of animal migration patterns, and increased vulnerability of species to extinction.

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What are algal blooms?

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Algal blooms are rapid increases in the population of algae in water bodies, often due to excess nutrients from pollution, which can harm aquatic ecosystems.

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What is the impact of algal blooms on freshwater systems?

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Algal blooms can lead to reduced water quality, decreased oxygen levels, and harm to fish and other aquatic life.

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What is renewable energy?

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Renewable energy is energy that is generated from natural processes that are continuously replenished, such as solar, wind, and hydroelectric power.