Human Impact on Nature

How does deforestation primarily impact the carbon cycle?

• It increases the amount of carbon dioxide in the atmosphere.

• It decreases the amount of carbon dioxide in the atmosphere.

• It has no effect on the carbon cycle.

• It increases the amount of oxygen in the atmosphere.

Which of the following is a direct consequence of overfishing?

• Increased biodiversity in marine ecosystems.

• Depletion of fish populations.

• Improved water quality.

• Increased fish population growth rates.

What is the primary cause of habitat destruction?

• Natural disasters.

• Human activities such as urbanization and agriculture.

• Predation by other species.

• Climate change alone.

How does pollution affect aquatic ecosystems?

• It increases the oxygen levels in water.

• It leads to the death of aquatic organisms.

• It has no significant impact.

• It promotes the growth of aquatic plants.

Which human activity is most responsible for the increase in greenhouse gases?

• Planting trees.

• Burning fossil fuels.

• Recycling.

• Using solar energy.

What is the effect of introducing invasive species into new environments?

• They always benefit the local ecosystem.

• They often outcompete native species for resources.

• They have no impact on the local species.

• They help increase biodiversity.

How does urbanization affect local wildlife?

• It provides more habitats for wildlife.

• It leads to habitat fragmentation and loss.

• It has no effect on wildlife.

• It increases the population of all species.

What is the main consequence of soil erosion caused by human activities?

• Increased soil fertility.

• Loss of arable land.

• Improved water retention in soil.

• Enhanced plant growth.

Which of the following is a result of climate change driven by human activities?

• Decreased global temperatures.

• Increased frequency of extreme weather events.

• Stabilization of sea levels.

• Reduced levels of atmospheric carbon dioxide.

How does plastic pollution primarily affect marine life?

• It provides new habitats for marine organisms.

• It leads to ingestion and entanglement, causing harm or death.

• It improves water quality.

• It has no impact on marine life.