Harmful Effects of Environmental Changes

What harmful effects can occur due to too much evaporation of water sources?

• Increase in rainfall

• Drying up of water sources

• Decrease in droughts

• Growth of aquatic life

What harmful effects can result from the melting of glaciers?

• Decrease in sea levels

• Loss of habitat for aquatic animals

• Reduction in coastal flooding

• Increase in freshwater availability

What harmful effects are caused by corrosion as a chemical change?

• Strengthening of metal structures

• Damage to structures like bridges and buildings

• Decrease in repair costs

• Preservation of metal objects

What harmful effects can result from acid rain as a chemical change?

• Preservation of buildings and monuments

• Promotion of aquatic life

• Damage to ecosystems and buildings

• Increase in soil nutrients

How can recycling benefit humans in minimizing the harmful effects of changes in materials?

• By increasing pollution

• By reducing the need for raw materials and creating job opportunities

• By depleting natural resources

• By increasing energy consumption

What is a practical action for minimizing the harmful effects of changes in materials?

• Consuming more resources

• Using disposable items frequently

• Reducing consumption

• Increasing waste generation

How can choosing eco-friendly alternatives minimize the harmful effects of changes in materials?

• By increasing greenhouse gas emissions

• By promoting a healthier lifestyle and reducing exposure to toxins

• By degrading natural habitats

• By increasing pollution

What is the benefit of proper disposal in minimizing the harmful effects of changes in materials?

• Increase in pollution

• Preservation of ecosystems

• Degradation of soil

• Harm to human health

Sarah lives in a city where there's heavy air pollution due to vehicle emissions and industrial activities. She often experiences coughing and breathing difficulties. What could be the cause of her health issues?

• Increased biodiversity

• Respiratory problems

• Environmental preservation

• Improved respiratory health

John's family runs a farm, and they use a lot of pesticides to protect their crops from pests. Recently, they noticed that some of their vegetables have traces of harmful chemicals. What could be the consequences of consuming these contaminated vegetables?

• Increase in soil fertility

• Growth of beneficial organisms

• Contamination of food

• Improvement in crop yields