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

Author Question: Of all the chemical elements, the one most crucial to the complexity of life is: A) hydrogen. B) ... (Read 87 times)

debasdf

  • Hero Member
  • *****
  • Posts: 570
on: Jul 27, 2018
Of all the chemical elements, the one most crucial to the complexity of life is:
 
  A) hydrogen.
  B) oxygen.
  C) sulfur.
  D) carbon.
  E) nitrogen.

Question 2

What is unusual about the motion of Phobos, as seen from the surface of Mars?
 
  What will be an ideal response?


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

nekcihc358

  • Sr. Member
  • ****
  • Posts: 327
Reply #1 on: Jul 27, 2018
Answer to Question 1

D

Answer to Question 2

While its orbit is equatorial and counterclockwise, it takes less time for this very close satellite to orbit Mars than for Mars to rotate. From the surface, Phobos would overtake the observer, rising in the west and setting in the east several hours later.


debasdf

  • Member
  • Posts: 570
Reply 2 on: Jul 27, 2018
Thanks for the timely response, appreciate it

cici

  • Member
  • Posts: 325
Reply 3 on: Yesterday
:D TYSM

« previous next »
 

Did you know?

Eat fiber! A diet high in fiber can help lower cholesterol levels by as much as 10%.

Did you know?

According to the National Institute of Environmental Health Sciences, lung disease is the third leading killer in the United States, responsible for one in seven deaths. It is the leading cause of death among infants under the age of one year.

Did you know?

The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.

Did you know?

You should not take more than 1,000 mg of vitamin E per day. Doses above this amount increase the risk of bleeding problems that can lead to a stroke.

Did you know?

Serum cholesterol testing in adults is recommended every 1 to 5 years. People with diabetes and a family history of high cholesterol should be tested even more frequently.

Bartel and Szostak demonstrated chemical selection for RNA molecules that can catalyze phosphoester Bartel and Szostak demonstrated chemical selection for RNA molecules that can catalyze phosphoester
Life cycle of moss Life cycle of moss
It is difficult for Americans to grasp the depth of the poverty that is the everyday life of ... It is difficult for Americans to grasp the depth of the poverty that is the everyday life of ...
How long does it take for 90% of a sample of strontium-90 (half-life of 28.8 years) to decay? How long does it take for 90% of a sample of strontium-90 (half-life of 28.8 years) to decay?
How to solve a half life problem involving exponential models (Question 2) How to solve a half life problem involving exponential models (Question 2)
A chemical reaction is run in which 447 Joules of work is done by the system and A chemical reaction is run in which 447 Joules of work is done by the system and
Video: Language Areas Animation

For a complete list of videos, visit our video library