« previous next »

Author Question: The earth is approximately how many years old? a. 1 billion. b. 9 million. c. 4.5 billion. ... (Read 158 times)

mynx

  • Hero Member
  • *****
  • Posts: 555
on: Jun 22, 2018
The earth is approximately how many years old?
 
  a. 1 billion.
  b. 9 million.
  c. 4.5 billion.
  d. 13.5 million.

Question 2

_____________ is the relationship when a male mates with numerous females.
 
  a. Polygyny.
  b. Monogamy.
  c. Polyandry.
  d. Symbiosis.


Gabe

  • Sr. Member
  • ****
  • Posts: 321
Reply #1 on: Jun 22, 2018
Answer to Question 1

C

Answer to Question 2

A


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

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?

Although the Roman numeral for the number 4 has always been taught to have been "IV," according to historians, the ancient Romans probably used "IIII" most of the time. This is partially backed up by the fact that early grandfather clocks displayed IIII for the number 4 instead of IV. Early clockmakers apparently thought that the IIII balanced out the VIII (used for the number 8) on the clock face and that it just looked better.

Did you know?

There are 60,000 miles of blood vessels in every adult human.

Did you know?

Amphetamine poisoning can cause intravascular coagulation, circulatory collapse, rhabdomyolysis, ischemic colitis, acute psychosis, hyperthermia, respiratory distress syndrome, and pericarditis.

Did you know?

About one in five American adults and teenagers have had a genital herpes infection—and most of them don't know it. People with genital herpes have at least twice the risk of becoming infected with HIV if exposed to it than those people who do not have genital herpes.

The open ocean is the most extensive biome on earth. The open ocean is the most extensive biome on earth.
President-elect Barack Obama 150 million tiny carbon nanotubes President-elect Barack Obama 150 million tiny carbon nanotubes
Uranus's aurorae against its equatorial rings, imaged by the Hubble telescope. Unlike the auror Uranus's aurorae against its equatorial rings, imaged by the Hubble telescope. Unlike the auror
How Orbital Eccentricity Changes the Amount of Solar Radiation Earth Receives How Orbital Eccentricity Changes the Amount of Solar Radiation Earth Receives
A partial stream sampling exhaust probe being used to measure exhaust gases in parts per million ... A partial stream sampling exhaust probe being used to measure exhaust gases in parts per million ...
Earth’s Oldest Preserved Rocks – 3.8 Billion Years Old, Greenland Earth’s Oldest Preserved Rocks – 3.8 Billion Years Old, Greenland
Video: Cardiac Cycle (Part 2 of 4)

For a complete list of videos, visit our video library