Author Question: At present, the formation of the solar system is believed by most astronomers to have begun with a ... (Read 68 times)

Mr3Hunna

  • Hero Member
  • *****
  • Posts: 536
At present, the formation of the solar system is believed by most astronomers to have begun with a large, swirling volume of cold gas and dust called the ______________ nebula.
 a. condensation
  b. primordial
  c. accretion
  d. celestial

Question 2

As a truck moves away from a person with its horn blowing, the person hears a frequency ______________ than that of the horn.
 Fill in the blank(s) with correct word



sarahccccc

  • Sr. Member
  • ****
  • Posts: 318
Answer to Question 1

b

Answer to Question 2

lower



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

Though newer “smart” infusion pumps are increasingly becoming more sophisticated, they cannot prevent all programming and administration errors. Health care professionals that use smart infusion pumps must still practice the rights of medication administration and have other professionals double-check all high-risk infusions.

Did you know?

Fewer than 10% of babies are born on their exact due dates, 50% are born within 1 week of the due date, and 90% are born within 2 weeks of the date.

Did you know?

Common abbreviations that cause medication errors include U (unit), mg (milligram), QD (every day), SC (subcutaneous), TIW (three times per week), D/C (discharge or discontinue), HS (at bedtime or "hours of sleep"), cc (cubic centimeters), and AU (each ear).

Did you know?

Only 12 hours after an egg cell is fertilized by a sperm cell, the egg cell starts to divide. As it continues to divide, it moves along the fallopian tube toward the uterus at about 1 inch per day.

Did you know?

When Gabriel Fahrenheit invented the first mercury thermometer, he called "zero degrees" the lowest temperature he was able to attain with a mixture of ice and salt. For the upper point of his scale, he used 96°, which he measured as normal human body temperature (we know it to be 98.6° today because of more accurate thermometers).

For a complete list of videos, visit our video library