« previous next »

Author Question: If we imagine the history of the universe compressed into one year, dinosaurs became extinct ... (Read 161 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?

Over time, chronic hepatitis B virus and hepatitis C virus infections can progress to advanced liver disease, liver failure, and hepatocellular carcinoma. Unlike other forms, more than 80% of hepatitis C infections become chronic and lead to liver disease. When combined with hepatitis B, hepatitis C now accounts for 75% percent of all cases of liver disease around the world. Liver failure caused by hepatitis C is now leading cause of liver transplants in the United States.

Did you know?

Walt Disney helped combat malaria by making an animated film in 1943 called The Winged Scourge. This short film starred the seven dwarfs and taught children that mosquitos transmit malaria, which is a very bad disease. It advocated the killing of mosquitos to stop the disease.

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?

More than 30% of American adults, and about 12% of children utilize health care approaches that were developed outside of conventional medicine.

Did you know?

The FDA recognizes 118 routes of administration.

Quagga (now extinct) Quagga (now extinct)
Universe Universe
Plato (428–347 B.C.E.). Ancient Greek philosopher of extraordinary significance in the history of ... Plato (428–347 B.C.E.). Ancient Greek philosopher of extraordinary significance in the history of ...
Patient health history form. Patient health history form.
The remarkably complete skull of a 3-year-old Australopithecus girl; the fossil is 3.3 million ... The remarkably complete skull of a 3-year-old Australopithecus girl; the fossil is 3.3 million ...
Age-standardized disability-adjusted life year (DALY) rates from hepatitis B by country (per 100 000 ... Age-standardized disability-adjusted life year (DALY) rates from hepatitis B by country (per 100 000 ...
Video: Erythropoietin (EPO)

For a complete list of videos, visit our video library