This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: The most productive systems on land are A) natural prairies. B) grasslands. C) forests. D) ... (Read 15 times)

jace

  • Hero Member
  • *****
  • Posts: 541
on: Jul 16, 2018
The most productive systems on land are
 
  A) natural prairies.
  B) grasslands.
  C) forests.
  D) tundra.

Question 2

In 1948 in Donora, Pennsylvania, the routine release of toxins into the air became a deadly fog because of
 
  A) a chemical spill in the nearby Monongahela River.
  B) greatly increased activity of the nearby industries.
  C) a thermal inversion and stagnant weather conditions.
  D) the failure of the chemical scrubbing systems on smokestacks.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

macagn

  • Sr. Member
  • ****
  • Posts: 345
Reply #1 on: Jul 16, 2018
Answer to Question 1

C

Answer to Question 2

C


jace

  • Member
  • Posts: 541
Reply 2 on: Jul 16, 2018
Gracias!

debra928

  • Member
  • Posts: 342
Reply 3 on: Yesterday
:D TYSM

« previous next »
 

Did you know?

About 3% of all pregnant women will give birth to twins, which is an increase in rate of nearly 60% since the early 1980s.

Did you know?

People with high total cholesterol have about two times the risk for heart disease as people with ideal levels.

Did you know?

The U.S. Preventive Services Task Force recommends that all women age 65 years of age or older should be screened with bone densitometry.

Did you know?

Barbituric acid, the base material of barbiturates, was first synthesized in 1863 by Adolph von Bayer. His company later went on to synthesize aspirin for the first time, and Bayer aspirin is still a popular brand today.

Did you know?

Drug abusers experience the following scenario: The pleasure given by their drug (or drugs) of choice is so strong that it is difficult to eradicate even after years of staying away from the substances involved. Certain triggers may cause a drug abuser to relapse. Research shows that long-term drug abuse results in significant changes in brain function that persist long after an individual stops using drugs. It is most important to realize that the same is true of not just illegal substances but alcohol and tobacco as well.

Three Tissue Systems Extend Throughout the Plant Body Three Tissue Systems Extend Throughout the Plant Body
Natural Products Natural Products
Forests conversion Forests conversion
Lever Systems and Leverage Lever Systems and Leverage
Sabrina's Fabric Land bought $5,000 of equipment at the beginning of 2015. Amortization ... Sabrina's Fabric Land bought $5,000 of equipment at the beginning of 2015. Amortization ...
Video: Central Nervous System Animation

For a complete list of videos, visit our video library