« previous next »

Author Question: The D-layer of the ionosphere: A) has most of its electrons combined with positively charged ions ... (Read 57 times)

Davideckstein7

  • Hero Member
  • *****
  • Posts: 555
on: Jul 14, 2018
The D-layer of the ionosphere:
 
  A) has most of its electrons combined with positively charged ions at night.
  B) lies above the E-layer.
  C) is transparent to AM radio waves.
  D) has no significant effect on AM radio waves.

Question 2

The stratosphere:
 
  A) is part of the heterosphere.
  B) has a low moisture content compared to the troposphere.
  C) typically gets colder as elevation increases.
  D) is where much of Earth's weather occurs.


31809pancho

  • Sr. Member
  • ****
  • Posts: 317
Reply #1 on: Jul 14, 2018
Answer to Question 1

Answer: A

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?

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.

Did you know?

Illicit drug use costs the United States approximately $181 billion every year.

Did you know?

Alzheimer's disease affects only about 10% of people older than 65 years of age. Most forms of decreased mental function and dementia are caused by disuse (letting the mind get lazy).

Did you know?

Asthma-like symptoms were first recorded about 3,500 years ago in Egypt. The first manuscript specifically written about asthma was in the year 1190, describing a condition characterized by sudden breathlessness. The treatments listed in this manuscript include chicken soup, herbs, and sexual abstinence.

Did you know?

Signs and symptoms that may signify an eye tumor include general blurred vision, bulging eye(s), double vision, a sensation of a foreign body in the eye(s), iris defects, limited ability to move the eyelid(s), limited ability to move the eye(s), pain or discomfort in or around the eyes or eyelids, red or pink eyes, white or cloud spots on the eye(s), colored spots on the eyelid(s), swelling around the eyes, swollen eyelid(s), and general vision loss.

Herbivore biomass is positively correlated with net aboveground primary production. Herbivore biomass is positively correlated with net aboveground primary production.
Subcutaneous layer Subcutaneous layer
The flow of ions through ion channels in myocardial cells. The flow of ions through ion channels in myocardial cells.
Three pathways of complement combined. (a) Figure shows a summary of how each pathway proceeds. (b) ... Three pathways of complement combined. (a) Figure shows a summary of how each pathway proceeds. (b) ...
Hydrogen ions control acidity Hydrogen ions control acidity
Calculate the amount of interest that will be charged on $9000.00 borrowed for four months at ... Calculate the amount of interest that will be charged on $9000.00 borrowed for four months at ...
Video: Evolutionary tree of life Animation

For a complete list of videos, visit our video library