Shared Flashcard Set

Details

Science Final
The Water pollution Problem
20
Science
6th Grade
06/03/2008

Additional Science Flashcards

 


 

Cards

Term
What is the major cause of water pollution?
Definition
Ocean dumping
Term
Why was the BritishParliament sometimes forced to close during the 19th century?
Definition
Pollution from the Thames River
Term
Robert Koch proved that_________are linked to disease
Definition
Pathogens
Term
List three diseases that are caused by contaminated water.
Definition
Choler, typhiod fever, dysentery
Term
After Koch's discovery, what changed was made in the practice of watrway dumping?
Definition
Had to dump in the ocean thereafter
Term
Define sewage
Definition
Water thatcontains organic wastes from humans and industry
Term
Is sewage from the US treated befor eit is dumped into the ocean?
Definition
Yes
Term
Is sewage from other country\ies treated before it's dumped into the ocean
Definition
no
Term
What does the cartoon in figure 21.1 show
Definition
Bathers in Ny offended by garbage and sewage floating back to the beach from the ocean
Term
What is the one thing that sewage treatment plants do not filter out
Definition
Organic Matter
Term
Why was the beach closed in San Diego California
Definition
Pollution from Tiajuana, Mexico
Term
Define Pathogens
Definition
Parasites, Bacteria, and viruses that cause diseases in living things
Term
How do pathogens enter water systems
Definition
Infected raw sewage and animal waste
Term
Name three places with the highest incidents of cholera and typhoid fever
Definition
Middle Eats, Asia, Africa, India
Term
How to you get schistosomiasias? What happens?
Definition
Walking barefoot through contaminateedd water. Microscopic worms settle in liver and intestines.
Term
How to get Malaria? How many people die?
Definition
Mosquito Bites. One million people a year die from it.
Term
What is the largest source of water pollution
Definition
Agriculture
Term
Name two toxic pollutants
Definition
Mercury, lead, crude oil, solvents
Term
Name one non toxic pollutant
Definition
plastic
Term
How can heat be a pollutant
Definition
It can kill things around it
Supporting users have an ad free experience!