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

Author Question: Due to the incredible size of the universe, our search for extraterrestrial life will probably be ... (Read 83 times)

cookcarl

  • Hero Member
  • *****
  • Posts: 539
on: Jul 27, 2018
Due to the incredible size of the universe, our search for extraterrestrial life will probably be limited to within our
 
  A) Local Group of galaxies
  B) Local Supercluster of galaxies
  C) Milky Way galaxy
  D) solar system

Question 2

The two families of fundamental particles out of which all ordinary matter is made are
 
  A) protons and neutrons.
  B) leptons and quarks.
  C) electrons and neutrinos.
  D) quarks and neutrinos.
  E) leptons and photons.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

ciecieme

  • Sr. Member
  • ****
  • Posts: 331
Reply #1 on: Jul 27, 2018
Answer to Question 1

C

Answer to Question 2

B


cookcarl

  • Hero Member
  • *****
  • Posts: 539
Reply #2 on: Jul 27, 2018
TY


ciecieme

  • Sr. Member
  • ****
  • Posts: 331
Reply #3 on: Jul 27, 2018
You're welcome


« previous next »
 

Did you know?

It is believed that humans initially contracted crabs from gorillas about 3 million years ago from either sleeping in gorilla nests or eating the apes.

Did you know?

More than one-third of adult Americans are obese. Diseases that kill the largest number of people annually, such as heart disease, cancer, diabetes, stroke, and hypertension, can be attributed to diet.

Did you know?

Coca-Cola originally used coca leaves and caffeine from the African kola nut. It was advertised as a therapeutic agent and "pickerupper." Eventually, its formulation was changed, and the coca leaves were removed because of the effects of regulation on cocaine-related products.

Did you know?

Congestive heart failure is a serious disorder that carries a reduced life expectancy. Heart failure is usually a chronic illness, and it may worsen with infection or other physical stressors.

Did you know?

Asthma-like symptoms were first recorded about 3,500 years ago in Egypt. The first manuscript specifically written about asthma was in the year 1190, describing a condition characterized by sudden breathlessness. The treatments listed in this manuscript include chicken soup, herbs, and sexual abstinence.

A parasite life cycle. A parasite life cycle.
Superior view of heart valves illustrating position, size, and shape of each valve. Superior view of heart valves illustrating position, size, and shape of each valve.
Ascomycetes Life Cycle Ascomycetes Life Cycle
Big Picture of the Evolution of the Universe Big Picture of the Evolution of the Universe
As their numbers grow and their resources and health improve, the elderly will enjoy life more and ... As their numbers grow and their resources and health improve, the elderly will enjoy life more and ...
Video: The pH scale - Strong acids and Weak acids

For a complete list of videos, visit our video library