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

Author Question: In the healthy environment of a sustainable soil, A) the levels of humus steadily decline, but ... (Read 103 times)

kfurse

  • Hero Member
  • *****
  • Posts: 590
on: Jul 16, 2018
In the healthy environment of a sustainable soil,
 
  A) the levels of humus steadily decline, but the aeration increases.
  B) sandy or silty soils are steadily converted to clay soils.
  C) abundant populations of bacteria are steadily replaced by mycorrhizae.
  D) the humus-forming processes of topsoil is renewed by the addition of detritus and humus.

Question 2

Match the sphere of the Earth with the correct definition.
 
  A) Gaseous envelope around the planet
  B) The solid Earth
  C) Water portion of the planet
  D) All life on the planet
 
  1) Hydrosphere
  2) Biosphere
  3) Atmosphere
  4) Geosphere


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

ricroger

  • Sr. Member
  • ****
  • Posts: 352
Reply #1 on: Jul 16, 2018
Answer to Question 1

D

Answer to Question 2

Answers: 1) C 2) D 3) A 4) B


kfurse

  • Member
  • Posts: 590
Reply 2 on: Jul 16, 2018
Gracias!

rleezy04

  • Member
  • Posts: 322
Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

« previous next »
 

Did you know?

People about to have surgery must tell their health care providers about all supplements they take.

Did you know?

Alcohol acts as a diuretic. Eight ounces of water is needed to metabolize just 1 ounce of alcohol.

Did you know?

Lower drug doses for elderly patients should be used first, with titrations of the dose as tolerated to prevent unwanted drug-related pharmacodynamic effects.

Did you know?

Looking at the sun may not only cause headache and distort your vision temporarily, but it can also cause permanent eye damage. Any exposure to sunlight adds to the cumulative effects of ultraviolet (UV) radiation on your eyes. UV exposure has been linked to eye disorders such as macular degeneration, solar retinitis, and corneal dystrophies.

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.

The bobcat population has seen declines in the American Midwest, but is generally stable and healthy The bobcat population has seen declines in the American Midwest, but is generally stable and healthy
The Environment Influences Gene Expression The Environment Influences Gene Expression
Levels of organization in a fast contracting frog Levels of organization in a fast contracting frog
Soil Structures Soil Structures
The four levels of protein structure The four levels of protein structure
Deciduous forest soil profile Deciduous forest soil profile
Video: How to find out if a population is evolving?

For a complete list of videos, visit our video library