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

Author Question: At about what frequency is Earth struck by a meteorite large enough (about 10 km in diameter) to ... (Read 62 times)

Jkov05

  • Hero Member
  • *****
  • Posts: 556
on: Jul 29, 2018
At about what frequency is Earth struck by a meteorite large enough (about 10 km in diameter) to cause mass extinctions?
 
  A) about every 1 million years
  B) about every 10 million years
  C) about every 100 million years
  D) This has yet to occur on Earth.

Question 2

To scale, if Earth were the size of a basketball, then the Moon would be about the size of a
 
  A) bowling ball.
  B) tennis ball.
  C) ping-pong ball.
  D) marble.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

jazzlynnnnn

  • Sr. Member
  • ****
  • Posts: 335
Reply #1 on: Jul 29, 2018
Answer to Question 1

Answer: C

Answer to Question 2

Answer: B


Jkov05

  • Member
  • Posts: 556
Reply 2 on: Jul 29, 2018
Great answer, keep it coming :)

Jsherida

  • Member
  • Posts: 314
Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

« previous next »
 

Did you know?

People who have myopia, or nearsightedness, are not able to see objects at a distance but only up close. It occurs when the cornea is either curved too steeply, the eye is too long, or both. This condition is progressive and worsens with time. More than 100 million people in the United States are nearsighted, but only 20% of those are born with the condition. Diet, eye exercise, drug therapy, and corrective lenses can all help manage nearsightedness.

Did you know?

Although puberty usually occurs in the early teenage years, the world's youngest parents were two Chinese children who had their first baby when they were 8 and 9 years of age.

Did you know?

The U.S. Preventive Services Task Force recommends that all women age 65 years of age or older should be screened with bone densitometry.

Did you know?

A headache when you wake up in the morning is indicative of sinusitis. Other symptoms of sinusitis can include fever, weakness, tiredness, a cough that may be more severe at night, and a runny nose or nasal congestion.

Did you know?

Chronic necrotizing aspergillosis has a slowly progressive process that, unlike invasive aspergillosis, does not spread to other organ systems or the blood vessels. It most often affects middle-aged and elderly individuals, spreading to surrounding tissue in the lungs. The disease often does not respond to conventionally successful treatments, and requires individualized therapies in order to keep it from becoming life-threatening.

Large male size and mating success. Large male size and mating success.
The rotifer, Brachionus calyciflorus, is a large predator that consumes the smaller algae, Chlorella The rotifer, Brachionus calyciflorus, is a large predator that consumes the smaller algae, Chlorella
Benvenuto Cellini, Saltcellar: Neptune (Sea) and Tellus (Earth). Benvenuto Cellini, Saltcellar: Neptune (Sea) and Tellus (Earth).
Earth-Sun Relationships Earth-Sun Relationships
Friction significantly influences airflow near Earth’s surface, but its effect is negligible at ... Friction significantly influences airflow near Earth’s surface, but its effect is negligible at ...
Current intensity and the frequency of action potentials Current intensity and the frequency of action potentials
Video: Insulin (glucose uptake by body cells), glycogenesis and lipogenesis

For a complete list of videos, visit our video library