« previous next »

Author Question: A pale yellow element occurring widely in nature is: a. iron c. sulfur b. phosphorus d. ... (Read 58 times)

jessicacav

  • Hero Member
  • *****
  • Posts: 558
on: Jul 21, 2018
A pale yellow element occurring widely in nature is:
 
 

a. iron c. sulfur
  b. phosphorus d. antimony



Question 2

For human survival, approximately what percentage of the air must be oxygen?
 
 

a. 21 c. 54
  b. 77 d. 42



cam1229

  • Sr. Member
  • ****
  • Posts: 329
Reply #1 on: Jul 21, 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?

Increased intake of vitamin D has been shown to reduce fractures up to 25% in older people.

Did you know?

About 100 new prescription or over-the-counter drugs come into the U.S. market every year.

Did you know?

Cancer has been around as long as humankind, but only in the second half of the twentieth century did the number of cancer cases explode.

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?

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.

Sceloporus undulates, the eastern fence lizard, is one of the most widely distributed lizard species Sceloporus undulates, the eastern fence lizard, is one of the most widely distributed lizard species
Two representations of heme (derived from PDB ID 1CCR). The iron atom Two representations of heme (derived from PDB ID 1CCR). The iron atom
Large Yellow Wood Sorrel Large Yellow Wood Sorrel
The line that has the yellow tag is a highpressure line and this line must be replaced with a new ... The line that has the yellow tag is a highpressure line and this line must be replaced with a new ...
One unit of clathrate structure surrounding a hydrophobic molecule (yellow) One unit of clathrate structure surrounding a hydrophobic molecule (yellow)
The three possible sequences of the white, yellow, and echinus genes The three possible sequences of the white, yellow, and echinus genes
Video: Fractures Animation

For a complete list of videos, visit our video library