Marine Ecosystem quiz

What is the difference between point source and non-point source pollution?

• Point source: one source of pollution 
  Non-point source: one source of pollution
• Point source: many sources of pollution
  Non-point source: one source of pollution
• Point source: one source of pollution 
  Non-point source: many sources of pollution
• Point source: many sources of pollution 
  Non-point source: many sources of pollution

True or false? An estuary has very little nutrients and life.  

• True
• False

What are the two basic causes of water pollution

• 1.  Industrialization 
  2. Farming
• 1. Farming
  2. Rapid human population growth
• 1. Increased amounts of animal waste near bodies of water
  2.Industrialization 
• 1. Rapid human population growth
  2.Industrialization

True or false? Coral reefs turn bright colors when dying.

• True 
• False

True or false? Eutrophication is when too many nutrients are put in a body of water. It is caused by acid rain. 

• True
• False

True or false? Coral reefs are made out of limestone

• True 
• False

True or false? Biomagnification is when a pollutant moves up the food chain as predators eat prey.

• False 
• True

What is an Estuary? 

• Water in the ground that is polluted.
• Temperatures are increased due to human activity. Causes too much algae bloom and loss of oxygen in the water.
• When  saltwater and freshwater meet and create a nutrient packed zone which has a lot of oxygen and a lot of life.
  
• Limestone ridges with lots of color and provides homes for many sea creatures.

What is artificial eutrophication-

• A  process that increases nutrients in water through waste disposal and land drainage.
• A process that decreases nutrients in the water through waste disposal and land drainage
• Putting algae in a pond
• Pollutants are often dumped directly into the ocean.

True or false? Marine ecosystems are located mainly in coastal areas and in the open ocean.

• True 
• False