Author Question: Magnesium is the element that appears in the second group of the second period. Indicate whether ... (Read 21 times)

nevelica

  • Hero Member
  • *****
  • Posts: 563
Magnesium is the element that appears in the second group of the second period.
 
  Indicate whether the statement is true or false

Question 2

Phosphates were once a common component of laundry detergents because they soften water. Why has their use been restricted?
 
  A) The phosphates are poisonous to plants.
  B) The phosphates are plant nutrients that lead to excess algae growth.
  C) The phosphates were getting into human drinking supplies.
  D) The phosphates diminished the supply of calcium found in cow's milk.



alvinum

  • Sr. Member
  • ****
  • Posts: 317
Answer to Question 1

FALSE

Answer to Question 2

B



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

Blood is approximately twice as thick as water because of the cells and other components found in it.

Did you know?

One way to reduce acid reflux is to lose two or three pounds. Most people lose weight in the belly area first when they increase exercise, meaning that heartburn can be reduced quickly by this method.

Did you know?

After 5 years of being diagnosed with rheumatoid arthritis, one every three patients will no longer be able to work.

Did you know?

There are more bacteria in your mouth than there are people in the world.

Did you know?

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

For a complete list of videos, visit our video library