« previous next »

Author Question: The auroras are caused by charged particles originating from ____. A) Earth's atmosphere B) solar ... (Read 67 times)

bclement10

  • Hero Member
  • *****
  • Posts: 560
on: Jul 13, 2018
The auroras are caused by charged particles originating from ____.
 A) Earth's atmosphere
  B) solar wind
  C) the North Pole
  D) the South Pole

Question 2

More tornadoes are being reported in recent decades because ____.
 A) of global warming
  B) an increase in deaths have occurred each year
  C) more people have spent time outdoors in recent years
  D) tornado-spotting technology has improved


lou

  • Sr. Member
  • ****
  • Posts: 286
Reply #1 on: Jul 13, 2018
Answer to Question 1

B

Answer to Question 2

D


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

As the western states of America were settled, pioneers often had to drink rancid water from ponds and other sources. This often resulted in chronic diarrhea, causing many cases of dehydration and death that could have been avoided if clean water had been available.

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?

More than 20 million Americans cite use of marijuana within the past 30 days, according to the National Survey on Drug Use and Health (NSDUH). More than 8 million admit to using it almost every day.

Did you know?

Calcitonin is a naturally occurring hormone. In women who are at least 5 years beyond menopause, it slows bone loss and increases spinal bone density.

Did you know?

The National Institutes of Health have supported research into acupuncture. This has shown that acupuncture significantly reduced pain associated with osteoarthritis of the knee, when used as a complement to conventional therapies.

Animation of the apparent retrograde motion of Mars in 2003 as seen from Earth Animation of the apparent retrograde motion of Mars in 2003 as seen from Earth
Scaling the Earth down to the size of a basketball, the Moon is roughly the size of a tennis ball. T Scaling the Earth down to the size of a basketball, the Moon is roughly the size of a tennis ball. T
Close-ups of Jupiter’s Atmosphere Close-ups of Jupiter’s Atmosphere
The Structure of the Atmosphere The Structure of the Atmosphere
Formation of the Early Earth Formation of the Early Earth
Earth’s Climate System Earth’s Climate System
Video: Endocytosis - pinocytosis, receptor mediated and Transcytosis

For a complete list of videos, visit our video library