« previous next »

Author Question: Natural sources produce greater quantities of air pollutants than do sources attributable to humans. ... (Read 64 times)

storky111

  • Hero Member
  • *****
  • Posts: 561
on: Jul 14, 2018
Natural sources produce greater quantities of air pollutants than do sources attributable to humans.
 
  Indicate whether the statement is true or false

Question 2

Problems with air pollution occurred as far back in time as the Roman period (2000 years ago).
 
  Indicate whether the statement is true or false


johnpizzaz

  • Sr. Member
  • ****
  • Posts: 345
Reply #1 on: Jul 14, 2018
Answer to Question 1

TRUE

Answer to Question 2

TRUE


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

The most common childhood diseases include croup, chickenpox, ear infections, flu, pneumonia, ringworm, respiratory syncytial virus, scabies, head lice, and asthma.

Did you know?

Patients should never assume they are being given the appropriate drugs. They should make sure they know which drugs are being prescribed, and always double-check that the drugs received match the prescription.

Did you know?

Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.

Did you know?

Once thought to have neurofibromatosis, Joseph Merrick (also known as "the elephant man") is now, in retrospect, thought by clinical experts to have had Proteus syndrome. This endocrine disease causes continued and abnormal growth of the bones, muscles, skin, and so on and can become completely debilitating with severe deformities occurring anywhere on the body.

Did you know?

Long-term mental and physical effects from substance abuse include: paranoia, psychosis, immune deficiencies, and organ damage.

Prenatal development in humans. Prenatal development in humans.
A 19-foot-long blue whale skull in the collections of the Smithsonian Museum of Natural History A 19-foot-long blue whale skull in the collections of the Smithsonian Museum of Natural History
Natural Capital Natural Capital
An engine in good mechanical condition should produce 17 to 21 inches Hg of vacuum at idle at sea ... An engine in good mechanical condition should produce 17 to 21 inches Hg of vacuum at idle at sea ...
La Niña: The impact of natural cycles La Niña: The impact of natural cycles
Beer is made from the fermentation of yeast and the natural sugars from grains Beer is made from the fermentation of yeast and the natural sugars from grains
Video: Red alga life cycle Animation

For a complete list of videos, visit our video library