« previous next »

Author Question: Which of the following components constitute(s) the greatest portion of the soil? A) humus B) ... (Read 61 times)

futuristic

  • Hero Member
  • *****
  • Posts: 638
on: Jul 14, 2018
Which of the following components constitute(s) the greatest portion of the soil?
 
  A) humus
  B) air
  C) rocks and rock particles
  D) dissolved substances

Question 2

Deforestation (cutting and burning) is known to cause
 
  A) long-term storage of carbon in the soil.
  B) relatively large amounts of carbon to enter the atmosphere.
  C) a decrease of carbon in the atmosphere.
  D) an increase in forested land.


dudman123

  • Sr. Member
  • ****
  • Posts: 304
Reply #1 on: Jul 14, 2018
Answer to Question 1

Answer: C

Answer to Question 2

Answer: B


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Before a vaccine is licensed in the USA, the Food and Drug Administration (FDA) reviews it for safety and effectiveness. The CDC then reviews all studies again, as well as the American Academy of Pediatrics and the American Academy of Family Physicians. Every lot of vaccine is tested before administration to the public, and the FDA regularly inspects vaccine manufacturers' facilities.

Did you know?

There can actually be a 25-hour time difference between certain locations in the world. The International Date Line passes between the islands of Samoa and American Samoa. It is not a straight line, but "zig-zags" around various island chains. Therefore, Samoa and nearby islands have one date, while American Samoa and nearby islands are one day behind. Daylight saving time is used in some islands, but not in others—further shifting the hours out of sync with natural time.

Did you know?

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

Did you know?

All adults should have their cholesterol levels checked once every 5 years. During 2009–2010, 69.4% of Americans age 20 and older reported having their cholesterol checked within the last five years.

Did you know?

The most dangerous mercury compound, dimethyl mercury, is so toxic that even a few microliters spilled on the skin can cause death. Mercury has been shown to accumulate in higher amounts in the following types of fish than other types: swordfish, shark, mackerel, tilefish, crab, and tuna.

Water potentials decrease (become more negative) as one moves from soil to plant to atmosphere Water potentials decrease (become more negative) as one moves from soil to plant to atmosphere
Soil as a system Soil as a system
Components of GDP vs. GPI Components of GDP vs. GPI
Slopes and Soil Development Slopes and Soil Development
Components of the Notch signaling pathway in Drosophila Components of the Notch signaling pathway in Drosophila
Main components of the human endocrine system and the effects of their secretions Main components of the human endocrine system and the effects of their secretions
Video: Hydrogen bonds - role in the body

For a complete list of videos, visit our video library