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

Author Question: The aurora borealis: A) is a different type of physical phenomenon than the aurora australis. B) ... (Read 79 times)

Themember4

  • Hero Member
  • *****
  • Posts: 538
on: Jul 14, 2018
The aurora borealis:
 
  A) is a different type of physical phenomenon than the aurora australis.
  B) gains its energy from sunlight reflected from Earth.
  C) is typically strongest near the equator.
  D) emits light as electrons move from higher orbits around the nucleus to lower ones.

Question 2

The ionosphere is so designated because:
 
  A) satellites have a difficult time flying through it.
  B) visible sunlight is deflected by it.
  C) of the electrical charges of atoms associated with it.
  D) no radio waves can pass through it.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Chou

  • Sr. Member
  • ****
  • Posts: 335
Reply #1 on: Jul 14, 2018
Answer to Question 1

Answer: D

Answer to Question 2

Answer: C


Themember4

  • Member
  • Posts: 538
Reply 2 on: Jul 14, 2018
:D TYSM

xiaomengxian

  • Member
  • Posts: 311
Reply 3 on: Yesterday
Gracias!

« 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?

Blood in the urine can be a sign of a kidney stone, glomerulonephritis, or other kidney problems.

Did you know?

Recent studies have shown that the number of medication errors increases in relation to the number of orders that are verified per pharmacist, per work shift.

Did you know?

Certain rare plants containing cyanide include apricot pits and a type of potato called cassava. Fortunately, only chronic or massive ingestion of any of these plants can lead to serious poisoning.

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.

Remedies for insomnia include increased physical exercise and time spent outdoors. Remedies for insomnia include increased physical exercise and time spent outdoors.
Increasing Physical Activity Increasing Physical Activity
A roller cell-type electric fuel pump. A roller cell-type electric fuel pump.
Basalt is the most common type of stone used in hot stone therapy. Basalt is the most common type of stone used in hot stone therapy.
Physical Activity Pyramid Physical Activity Pyramid
Physical Findings of Tension Pneumothorax Physical Findings of Tension Pneumothorax
Video: Inflammation Animation

For a complete list of videos, visit our video library