« previous next »

Author Question: If we imagine the history of the universe compressed into one year, dinosaurs became extinct ... (Read 187 times)

ssal

  • Hero Member
  • *****
  • Posts: 572
on: Jul 27, 2018
If we imagine the history of the universe compressed into one year, dinosaurs became extinct ________.
 
  A) about an hour ago B) about 6 months ago
  C) about 3 weeks ago D) yesterday morning

Question 2

Why don't low-mass stars have the CNO cycle occurring in their cores?
 
  A) They don't have enough carbon, nitrogen, and oxygen.
  B) The CNO cycle makes elements heavier than carbon, nitrogen, and oxygen.
  C) Their core temperatures are too low.


marict

  • Sr. Member
  • ****
  • Posts: 304
Reply #1 on: Jul 27, 2018
Answer to Question 1

D

Answer to Question 2

C


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

When intravenous medications are involved in adverse drug events, their harmful effects may occur more rapidly, and be more severe than errors with oral medications. This is due to the direct administration into the bloodstream.

Did you know?

Human neurons are so small that they require a microscope in order to be seen. However, some neurons can be up to 3 feet long, such as those that extend from the spinal cord to the toes.

Did you know?

In the ancient and medieval periods, dysentery killed about ? of all babies before they reach 12 months of age. The disease was transferred through contaminated drinking water, because there was no way to adequately dispose of sewage, which contaminated the water.

Did you know?

Drug-induced pharmacodynamic effects manifested in older adults include drug-induced renal toxicity, which can be a major factor when these adults are experiencing other kidney problems.

Did you know?

Pink eye is a term that refers to conjunctivitis, which is inflammation of the thin, clear membrane (conjunctiva) over the white part of the eye (sclera). It may be triggered by a virus, bacteria, or foreign body in the eye. Antibiotic eye drops alleviate bacterial conjunctivitis, and antihistamine allergy pills or eye drops help control allergic conjunctivitis symptoms.

The health history can be gathered from many sources The health history can be gathered from many sources
Dietart history for older adults Dietart history for older adults
William Masters and Virginia Johnson are among the most influential researchers in the history of th William Masters and Virginia Johnson are among the most influential researchers in the history of th
The Martial History of U.S. Brides and Grooms The Martial History of U.S. Brides and Grooms
Video: Chemical Equilibrium between N2O4 (colorless gas) and NO2 (brown gas)

For a complete list of videos, visit our video library