Grade 8 Environmental Science Quiz

What is brackish water?

• Water that has more salinity than freshwater but less salinity than seawater

• Water that has more salinity than seawater

• Water that has less salinity than freshwater

• Water that has equal salinity to freshwater

What is salinity?

• The measure of the concentration of dissolved salts in water

• The measure of the concentration of dissolved oxygen in water

• The measure of the concentration of dissolved nutrients in water

• The measure of the concentration of dissolved pollutants in water

What does EPA stand for?

• United States Environmental Protection Agency

• Environmental Pollution Association

• Environmental Protection Act

• United States Environmental Agency

What is the Clean Water Act?

• A federal law enacted to restore and maintain the quality of the nation's waters

• A federal law enacted to regulate air pollution

• A federal law enacted to protect endangered species

• A federal law enacted to regulate waste management

What is the Safe Drinking Act?

• A federal law that ensures the safety of public drinking water supplies

• A federal law that ensures the safety of public transportation

• A federal law that ensures the safety of public parks

• A federal law that ensures the safety of public schools

What is a pesticide?

• A substance used to control, repel, or destroy pests

• A substance used to control, repel, or destroy weeds

• A substance used to control, repel, or destroy insects

• A substance used to control, repel, or destroy fungi

What is a herbicide?

• A type of pesticide specifically designed to control or destroy unwanted plants

• A type of pesticide specifically designed to control or destroy insects

• A type of pesticide specifically designed to control or destroy fungi

• A type of pesticide specifically designed to control or destroy pests

What is stewardship?

• The responsible and sustainable management and care of natural resources

• The responsible and sustainable management and care of public parks

• The responsible and sustainable management and care of public transportation

• The responsible and sustainable management and care of public schools

What is nitrate?

• A compound containing nitrogen and oxygen that is essential for plant growth

• A compound containing nitrogen and oxygen that is essential for animal growth

• A compound containing nitrogen and oxygen that is essential for human growth

• A compound containing nitrogen and oxygen that is essential for water growth

What is phosphate?

• A chemical compound containing phosphorus and oxygen that is vital for the growth of plants

• A chemical compound containing phosphorus and oxygen that is vital for the growth of animals

• A chemical compound containing phosphorus and oxygen that is vital for the growth of humans

• A chemical compound containing phosphorus and oxygen that is vital for the growth of water