Water
What is the chemical symbol for water?
H2O
Why are oil spills bad?
Because it kills marine life, is very hard to clean, and puts toxic chemicals into the ocean
What is wastewater?
Wastewater is used water. It includes substances such as human waste, food scraps, oils, soaps, and chemicals.
What is water treatment
the process to eliminate pollutants from water to make it safe for drinking
solid, liquid, and gas
What are the two main types of ways salt water sources are polluted?
Oil spills and waste accumulation (like plastics)
Cooking food, cleaning dishes, using the bathroom, drinking water, watering our plants, etc
How is water disinfected?
with UV rays and chlorine
What atoms make up a water molecule?
Two hydrogen and 1 oxygen atoms
What is the name of the massive are of trash in the ocean off the coast of CA?
The Great Pacific Garbage Patch
What human sources cause pollution to freshwater?
industrial pollution sources and agricultural pollution sources
In a water treatment plant, what is the sedimentation tank?
The sedimentation tank filters smaller particles in the water
What is transpiration?
Transpiration is defined as the process where water evaporates into the atmosphere through plants
What can we do to keep our oceans safe from pollution?
Reduce plastic usage, clean up our beaches, and more
How does agriculture cause water pollution?
Fertilizers, pesticides, and herbicides pollute the water
What is purification?
When we eliminate toxic or dangerous substances from wastewater
What 2 factors drive the water cycle?
the sun and the force of gravity
What happens to oxygen levels in the ocean during an oil spill?
The oil could prevent oxygen from entering the water, lowering oxygen levels in surface water
What is eutrophication?
Algae and bacteria grow uncontrollablly because a body of water is overly enriched with nutrients. This blocks light and kills other living things.
What are pollution laws?
Laws that put standards on the amount of industrial pollution permitted