Ecosystems and Human Impact Quiz

Which human activity most directly destroys natural ecosystems?

• Urban development

• Recycling

• Afforestation

• Conservation

What is the role of decomposers in ecosystems?

• Produce energy

• Break down dead matter

• Consume plants

• Compete for resources

How are carnivores and herbivores different in their feeding habits?

• Carnivores eat plants; herbivores eat meat

• Carnivores eat meat; herbivores eat plants

• Both eat the same diet

• Herbivores are larger

Which process mainly removes excess water from the body?

• Respiration

• Digestion

• Excretion

• Circulation

Which human activity can lead to soil erosion?

• Reforestation

• Deforestation

• Conservation

• Sustainable farming

Which is NOT an effect of pollution on ecosystems?

• Loss of biodiversity

• Increased soil fertility

• Habitat destruction

• Water contamination

What is the significance of a balanced ecosystem?

• It promotes uniformity

• It enhances species extinction

• It supports biodiversity and stability

• It eliminates competition

Why are wetlands important to ecosystems?

• They are always dry

• They filter pollutants and provide habitat

• They increase evaporation

• They store carbon only

Which is a way humans can reduce their impact on the environment?

• Increasing fossil fuel use

• Promoting biodiversity

• Ignoring recycling

• Expanding urban areas

How does deforestation impact the carbon cycle?

• Increases carbon storage

• Reduces carbon dioxide levels

• Increases carbon dioxide in the atmosphere

• Has no effect