Author Question: Where is dark matter found in the periodic table? A) within the noble gas elements B) the ... (Read 31 times)

cherise1989

  • Hero Member
  • *****
  • Posts: 555
Where is dark matter found in the periodic table?
 
  A) within the noble gas elements
  B) the transition metals
  C) all radioactive elements
  D) no where at all

Question 2

Evidence for dark matter is exhibited by the
 
  A) relatively similar speeds at which all stars in a galaxy orbit the galactic nucleus.
  B) speed at which galaxies orbit one another within clusters.
  C) degree to which galaxy clusters exhibit gravitational lensing effects.
  D) All of the above



patma1981

  • Sr. Member
  • ****
  • Posts: 292
Answer to Question 1

Answer: D

Answer to Question 2

Answer: D



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.

Did you know?

Hip fractures are the most serious consequences of osteoporosis. The incidence of hip fractures increases with each decade among patients in their 60s to patients in their 90s for both women and men of all populations. Men and women older than 80 years of age show the highest incidence of hip fractures.

Did you know?

Asthma attacks and symptoms usually get started by specific triggers (such as viruses, allergies, gases, and air particles). You should talk to your doctor about these triggers and find ways to avoid or get rid of them.

Did you know?

In inpatient settings, adverse drug events account for an estimated one in three of all hospital adverse events. They affect approximately 2 million hospital stays every year, and prolong hospital stays by between one and five days.

Did you know?

Astigmatism is the most common vision problem. It may accompany nearsightedness or farsightedness. It is usually caused by an irregularly shaped cornea, but sometimes it is the result of an irregularly shaped lens. Either type can be corrected by eyeglasses, contact lenses, or refractive surgery.

For a complete list of videos, visit our video library